At least 11 civilians including four women and three children were killed when a roadside bomb struck a bus in Afghanistan, officials said Sunday, in the latest attack targeting passenger vehicles in the violence-wracked country.

A roadside bomb planted by Syrian militants detonated near a joint Russian-Turkish patrol in northern Syria on Tuesday morning, injuring three Russian soldiers, the Russian Defence Ministry said.

A policeman was killed and two others wounded Tuesday by a roadside bomb aimed at polio vaccination workers in Pakistan's restive northwest, officials said.

A car bomb killed 14 people, nine of them civilians, on Saturday in the Turkish-controlled town of Al-Bab in northern Syria, a war monitor said.

The death toll from a massive bomb attack which flattened a hospital in southern Afghanistan earlier this week has risen to at least 39, officials said Friday.

At least four policemen were killed and 11 wounded by two roadside bombs that targeted police convoys in separate attacks in northern Iraq on Sunday, the service and medical sources said.

A boy was killed and four others wounded in a double bombing outside a girls' school in restive eastern Afghanistan on Tuesday, officials and witnesses said, in the latest violence to hit the country.

In a huge security operation, Jordanian forces laid siege to the building in a residential part of Salt on Saturday night in a search for those responsible for a bomb attack on Friday on a police van.

Qatar has condemned the bombing of a mosque in eastern Afghanistan's province of Khost on Sunday, which caused several deaths and injured worshippers.

Around 15 militants have been killed in an attack on a United Nations base in northern Mali's historic city of Timbuktu, the French military told AFP on Sunday.

Four people including a candidate in upcoming state elections have been killed by a bomb while travelling in a restive northeast region of India, police said Monday.

Two Palestinians were killed by Israeli fire, Gaza medical sources said on Sunday, after four soldiers were wounded in an apparent bomb attack on the border with the Palestinian enclave.