Slain Bhutto's supporters take anger to the streets

ISLAMABAD (Reuters) - Pakistan put its paramilitary forces on "red alert" across the country on Thursday after the assassination of opposition leader Benazir Bhutto sparked violent protests by her supporters.

President Pervez Musharraf denounced what he called a terrorist attack and appealed for calm after angry backers of the slain former prime minister took to the streets across Pakistan, from the Himalayas to the southern coast.

The unrest was predictably fiercest in her native Sindh province and its capital, Karachi.

"Police in Sindh have been put on red alert," said a senior police official. "We have increased deployment and are patrolling in all the towns and cities, as there is trouble almost everywhere."

Reports said security was deteriorating in Karachi, where thousands poured on to the streets to protest. At least three banks, a government office and a post office were set on fire, a witness said.

Tires were set on fire on many roads, and shooting and stone-throwing was reported in many places. Most shops and markets in the city shut down.

At least 20 vehicles were torched in the central Sindh town of Hyderabad.

There were also small protests in Rawalpindi and the nearby capital, Islamabad.

Protesters blocked roads with burning tyres and chanted slogans against President Pervez Musharraf in Muzaffarabad, capital of Pakistani Kashmir in the mountainous north.