Tripoli, Libya ? Libyans angry about caricatures of the Prophet Muhammad rioted Friday at the Italian consulate, storming the building and setting it on fire. A diplomat said at least 10 people were killed in clashes with police.

It was the deadliest demonstration yet against the cartoons, which have set off violent protests throughout the Muslim world. At least 29 people have been killed.

In Pakistan, a cleric announced a $1 million bounty for killing the cartoonist. Denmark, where a newspaper first published the cartoons, temporarily closed its embassy in Pakistan and advised its citizens to leave the country.

Libyan security officials said 11 people were killed or wounded during the riot in the eastern city of Benghazi when police firing bullets and tear gas tried to contain more than 1,000 demonstrators hurling rocks and bottles. The casualties included police officers, but the officials declined to say how many people had died.

Rioters charged the consular compound and set fire to the first floor of the building, according to the Italian Foreign Ministry.

Domenico Bellantone, an Italian diplomat, said 10 or 11 people – all Libyan – had died.

The riot appeared to be a reaction to Italian Cabinet Minister Roberto Calderoli, who said this week he would wear a T-shirt printed with the cartoons, which have provoked protests across the Muslim world. His remark was widely published in Libya.

Calderoli wore the T-shirt beneath a suit Friday. Hours later, Italian Prime Minister Silvio Berlusconi asked for his resignation, the ANSA news agency reported.

Smoke rises from burning tires set on fire by angry mobs protesting against the publication of cartoons of the Islamic Prophet Muhammad in Karachi, Pakistan, Friday, Feb. 17, 2006. A Pakistani cleric offered a 1.5 million rupee (US6,700) reward and a car for anyone who kills the cartoonist who drew Prophet Muhammad, while another Islamist leader was put under house detention, amid fears of more deadly demonstrations, officials said.

In Pakistan, the cleric Mohammed Yousaf Qureshi said the mosque and the religious school he leads would give a $25,000 reward and a car for killing the cartoonist who drew the caricatures – considered blasphemous by many Muslims. He said a local jewelers’ association also would give $1 million, but no representative of the association was available to confirm the offer.

“This is a unanimous decision by all imams of Islam that whoever insults the prophets deserves to be killed and whoever will take this insulting man to his end, will get this prize,” he said.

Qureshi did not name any cartoonist and he did not appear aware that 12 people had drawn the pictures.

A Danish newspaper first printed the caricatures in September. The newspaper has since apologized to Muslims for the cartoons, one of which shows Muhammad wearing a bomb-shaped turban.