Top news: Protests throughout the Muslim world over an online video that insulted the Prophet Mohammed entered their fourth day today, and U.S. embassies are on high alert for more clashes following Friday prayers. 

One day after protesters breached the outer wall of the U.S. embassy in Sanaa, Yemen, police blocked crowds from approaching the embassy with water cannons. In Bangladesh, thousands of protesters reportedly burned U.S. and Israeli flags but were blocked by police from approaching the U.S. embassy. Afghanistan saw its first protests over the video in the eastern city of Jalalabad. Protests have also been reported in Pakistan, Iraq, India, Sudan, and other countries.  

In Egypt, where the demonstrations began on Tuesday, the Muslim Brotherhood canceled its call for a nationwide protest against the video. In a letter to the New York Times today, the Brotherhood's deputy president Khairat al-Shater wrote, "Despite our resentment of the continued appearance of productions like the anti-Muslim film that led to the current violence, we do not hold the American government or its citizens responsible for acts of the few that abuse the laws protecting freedom of expression."

Meeting with a delegation from Morocco on Thursday, U.S. Secretary of State Hillary Clinton appealed for calm, saying of the video, “We absolutely reject its content and messages. But there is no justification — none at all — for responding to this video with violence.”

Four people have been arrested in Libya in connection with the attack on the U.S. consulate in Benghazi on Tuesday that killed four Americans including Ambassador Christopher Stevens. U.S. officials have suggested that the attack was planned in advance by militants who used the protests as a diversion.

East China Sea: Six Chinese vessels have entered Japanese waters to protest the Japanese government's purchase of three disputed islands. The Japanese government has summoned China's ambassador.