An estimated 50,000 protesters gathered outside the embassy district in Islamabad today.
Police were called in to control the situation.
US Embassy Targeted
Students, protesting against the anti-Islam film in Islamabad, entered the red zone on Thursday and reached the entrance of the heavily-guarded diplomatic enclave. The Army was called in to control the situation.
The BBC reported:
The Pakistani authorities had earlier called on the army as police struggled to contain the crowd of thousands with tear gas and live rounds.
Some protesters had said they would not leave the diplomatic enclave until the US embassy was on fire.
Protests over the film, Innocence of Muslims, have claimed several lives.
It was made in the US and is said to insult the Prophet Muhammad.
Streets leading to the enclave, where most of the embassies are housed, were earlier blocked off by shipping containers in an effort to increase security.
Television pictures showed chaotic scenes as police tried to gain control of the situation.
Protesters burned an effigy of US President Barack Obama and threw missiles at the polcie.
One demonstrator told reporters: “The infidel who produced the movie should be hanged, or hand over him to the Muslims. And we don’t want any (US) diplomat or embassy in Pakistan: all relations should be cut off.”
The BBC’s Aleem Maqbool in Islamabad, who did not see any evidence of the army at the scene, said the protest was “turned out like a light”.