As the fallout from an online film that mocks Islam's holy prophet continued Tuesday, al Qaeda's affiliate in North Africa urged Muslims in the region to kill U.S. government representatives and called the death of Ambassador Chris Stevens a "gift."
"We encourage all Muslims to continue to demonstrate and escalate their protests ... and to kill their (American) ambassadors and representatives or to expel them to cleanse our land from their wickedness," said the statement from al Qaeda in the Islamic Maghreb.
The group called last week's killing of Stevens, the U.S. ambassador to Libya, "the best gift you (can) give to his arrogant and unjust administration."
Elsewhere Tuesday, a Taliban-allied insurgent group claimed responsibility for a suicide attack that killed 12 people, including eight South Africans, in Afghanistan. The attack was a response to the film, the group said.
Hezb-e-Islami Gulbuddin, a group allied with the Taliban, said a 22-year-old woman drove a car packed with 660 pounds (300 kilograms) of explosives into a van on a road leading to Kabul International Airport.
Eleven others were wounded in the attack, the Afghan Interior Ministry said.
The escalating tensions have spilled into NATO military operations in the central Asia nation, prompting the alliance to order its troops to adjust joint operations with Afghan security forces to minimize attacks on them by their local allies.
"Recent events outside of and inside Afghanistan related to the 'Innocence of Muslims' video plus the conduct of recent insider attacks have given cause for ISAF troops to exercise increased vigilance and carefully review all activities and interactions with the local population," said a spokeswoman for NATO's International Security Assistance Force. The operations with Afghan forces could increase as the "threat level" goes down, she said.
Here are the latest key developments:
Tuesday began more quietly in parts of the world that had been rocked by protests in recent days.
A general strike flared in Indian-administered Kashmir, shutting down businesses, public transport and most government operations, with reports of sporadic violence.
A coalition of religious parties and separatist groups called the strike as a protest against the film.
The scene was much different a day earlier when demonstrators took to the streets in Afghanistan, Indonesia, Pakistan, Yemen, Lebanon and Iraq.
Answering a call from the leader of Hezbollah -- deemed a terrorist organization by the United States -- thousands packed the streets of Beirut's southern suburbs Monday and chanted, "Death to America!"
Monday's protests weren't on the scale of those last week, nor did they provoke the same level of international crisis by endangering U.S. diplomatic missions.
Still, the fact that the demonstrations are continuing -- and that they have occurred in more than 20 countries -- suggests the anti-American furor tied to the inflammatory film isn't going away.
Washington has made it clear that it did not sanction the low-budget, amateurish 14-minute movie trailer produced privately in the United States and posted on YouTube. The clip mocks the Prophet Mohammed as a womanizer, child molester and killer.
Islam forbids any depictions of Mohammed, and blasphemy is taboo among many in the Muslim world.
The film clip was relatively obscure until September 11 when rioters breached the U.S. Embassy in Cairo and upset protesters attacked the U.S. Consulate in Benghazi, Libya, killing Stevens and three other Americans.
A wave of protests since then has rippled from Morocco to Malaysia, spurring U.S. officials to increase security at diplomatic missions and demand other governments to take action.
Investigation into ambassador's killing
Libya has taken steps to arrest those responsible for last week's deadly consulate attack, bringing in dozens for questioning over the weekend, Libyan officials said. The exact number of arrests was unclear. One Libyan official said those arrested included suspects from Mali and Algeria as well as al Qaeda sympathizers.
Wanes al-Sharif, a deputy interior minister whose jurisdiction included eastern Libya, was fired one day after the Benghazi attack, according to documents obtained Monday by CNN. No reason was given for al-Shari's dismissal. Notably, he told reporters after the U.S. Consulate in Benghazi assault that he'd ordered a security force mobilized during the unrest "to leave the area because of the large number of protesters."
The FBI also is investigating the Libya attack but has yet to enter the country because of volatility there. In the meantime, FBI agents are interviewing witnesses outside Libya, federal law enforcement officials said.
U.S. Defense Secretary Leon Panetta told reporters over the weekend that the worst of the violence appeared over, but the United States is maintaining tight security anyway.
Nonessential personnel have been ordered to leave American diplomatic missions in Sudan, Tunisia and Libya. In Yemen, consular services were suspended until the end of the month. And on Monday, the U.S. State Department -- citing "current safety and security concerns" -- urged U.S. citizens to avoid travel to Lebanon.
But the U.S. Embassy in Cairo, the scene of five consecutive days of protests, returned to full staffing Sunday, the State Department said.
Filmmaker in hiding, video blocked
Federal officials say the man behind the film that sparked the worldwide protests is Nakoula Basseley Nakoula, a convicted felon with a history of using aliases to hide his actions. Nakoula is on probation for bank fraud.
Nakoula and his family have left their Cerritos, California, home for an unidentified location, the Los Angeles County Sheriff's Department said Monday.
Reports that Nakoula is a Coptic Christian have raised concern about a possible backlash against the minority religious group in Egypt, where tensions between Copts and Muslims have risen recently. He initially told The Wall Street Journal that he was an Israeli.
Nakoula denied he made the film, according to Bishop Serapion, the head of the Coptic Orthodox Diocese of Los Angeles, citing a phone conversation with him last week. At a news conference Monday, the Coptic leader condemned violence by protesters which, he said, "only serves to continue the hate."
"There should have been no bloodshed," echoed local Muslim leader Maher Hathout, chairman of the Islamic Shura Council of Southern California, at the same Los Angeles event. "As a matter of fact, there should have been no reaction to such an insignificant production."
Washington's denouncement has no effect
Despite U.S. government officials' firm condemnation, some in the Muslim world -- especially those raised in regimes in which the government must authorize any film -- cannot accept that a movie such as "Innocence of Muslims" can be made without Washington's blessing, Council of Foreign Relations scholar Ed Husain said.
"They're projecting ... their experience, their understanding (that) somehow the U.S. government is responsible for the actions of a right-wing fellow," said Husain, a senior fellow at the New York think thank.
Meanwhile, efforts to block the film are spreading.
A day after the protests broke out, YouTube announced it was restricting access to the video, and since then, Google India has blocked access. (Google is YouTube's parent company.) Afghanistan, Pakistan and Bangladesh also have ordered an indefinite block of YouTube to prevent people there from watching the clip.
In Russia, the prosecutor general's office said Monday it will seek to block the movie, which it has labeled extremist, and Communications Minister Nikolai Nikiforov warned the country may block YouTube over the video, the state-run RIA Novosti news agency reported.