Jakarta – A bomb blast at a fast food restaurant in the Indonesian capital Jakarta on Saturday wounded one person, police said.

Police said the blast occurred around midday at an outlet of the US-based A&W chain in a shopping mall in the east of the city and they were investigating, with bomb squad and counter-terrorism officers present.

A Jakarta police spokesman described the bomb as low explosives. "It (the blast) was in an A&W restaurant at 11.45 a.m. Initially we suspect that the person who set it off was the victim," spokesman I Ketut Untung Yoga Ana said. The official said the wounded man was being treated at a police hospital.

A Reuters correspondent on the scene said windows of the restaurant were cracked, with broken plates, glasses and food littered on the floor.

The Indonesian capital and other parts of the country have seen previous bomb attacks linked to Islamic militants usually aimed at targets with Western ties, but blasts are sometimes also linked to separatist groups or criminal activities.

In 2003, a bomb exploded near an outlet of the US-based KFC fast-food chain in Jakarta's international airport, wounding more than 10 people.

Major attacks linked to Islamic militants have mostly been in the capital or on the resort island of Bali.

A bomb attack in 2003 on the US-run JW Marriot hotel in Jakarta killed 12 people, while a bomb attack on the Australian embassy killed 10 people a year later.

Two sets of suicide bomb blasts on nightclubs and restaurants popular with Western tourists in the resort island of Bali in 2002 and 2005 killed more than 220.