TIMELINE - Bomb attacks in Indonesia

SINGAPORE (Reuters) - Bomb blasts at two hotels in Jakarta's business district killed nine people and wounded 42 others on Friday, Indonesian police said.

Bombings in Indonesia, the world's most populous Muslim nation, have commonly been blamed on militant Islamic groups, but criminal gangs, ethnic strife and politics have also been cited as possible causes in some cases.

Following is a timeline of major blasts in Indonesia.

Aug 1, 2000 - Philippine ambassador is among dozens wounded in a blast outside his Jakarta home. Two people are killed.

Sept 13, 2000 - Blast at stock exchange in Jakarta kills 15 and wounds dozens.

Dec 24, 2000 - Series of Christmas Eve blasts at Jakarta churches and elsewhere in the country kill 17 people and wound about 100. At first thought by some to have political motivations, the blasts are later tied to Jemaah Islamiah.

Oct 12, 2002 - Blasts on the tourist island of Bali kill 202 people, many of them foreign tourists, including 88 Australians. Three of the "Bali bombers" from the al Qaeda-linked group Jemaah Islamiah are executed by firing squad in November 2008.

Dec 5, 2002 - Blast in a McDonald's restaurant in eastern town of Makassar kills three.

Aug 5, 2003 - Bomb outside JW Marriott Hotel in Jakarta kills 12 people, including a Dutchman, and wounds 150. Jemaah Islamiah is blamed.