Philippine Jihad Update from the BBC, with thanks to JE:
At least five people have died and 10 others have been injured in an explosion on the southern Philippine island of Mindanao.
The blast happened in a busy market in the town of Shariff Aguad, police said.
No one has claimed responsibility, but police said Andal Ampatuan, the governor of Maguindanao province, appeared to be the main target.
Mr Ampatuan, an ally of President Gloria Arroyo, was driving past the market at the time the bomb went off.
Four of those killed, including bodyguards and a former town mayor, were in the convoy. Police and army officials say the homemade bomb was hidden in a van and detonated as the motorcade went by.
Mr Ampatuan, who has survived several previous assassination attempts, wields a great deal of power on Mindanao, an island rife with Muslim and Communist rebels, as well as local warlords.
Mindanao is the heartland of the Philippines’ small Muslim minority, but the majority of the country is Roman Catholic.
The country’s largest Muslim rebel group, the Moro Islamic Liberation Front (MILF), denied it was responsible for the attack. The group is now in peace talks with the government.
The military said there were indications the bombing was carried out by Jemaah Islamiah, a regional network of Muslim militants allegedly linked to al-Qaeda.