Iran has vowed to take international legal action against Saudi Arabia’s rulers over the crush of Muslim pilgrims at this year’s hajj, which killed at least 769 people, including 136 Iranians.

A suicide bomber driving a minibus full of explosives killed at least 15 people near a police academy in the heart of Yemen’s capital, Sanaa.

Syrian activists have claimed rebels shot down a government warplane over the northern province of Idlib on Thursday, the second time in a week that opposition fighters claimed to have brought down an aircraft in the escalating civil war.

A Saudi-led military force crossed into Bahrain to prop up the monarchy in the tiny island nation against widening demonstrations, launching the first cross-border military operation to quell unrest since the Arab world’s rebellions began in December.