The explosion took place behind the building, causing some damage on the small bridge, but no damage for the UN building.

The local police found other two similar bombs nearby, and have questioned a number of witnesses on the site. One of them was slightly injured.

So far the motive behind the terror bombs remained unknown.

Indonesian Police Investigating Bomb Blast near UN Office

The Indonesian police have questioned at least 11 witnesses and collected evidences after a low-explosive device blasted just a few meters away from a UN office in Central Jakarta early on Thursday.

The bomb exploded only one day after the Jakarta Court began the trial against alleged terror group leader Abu Bakar Ba'asyir and the police headquarters announced the capture of 17 members of Jemaah Islamiyah, which the government has proposed to be included in the UN list of international terrorist groups.

The police have confirmed that the explosion was caused by a low-explosive device after they found several pipes commonly used in a home-made device.

"Given the evidences, it was a bomb blast," deputy chief of Central Jakarta Police Ricky Wakano said at the site.

A bomb disposal team was deployed to search other bombs possibly planted in the UN building but it said nothing was found. Ricky declined to name any possible suspect behind the bombing.

The blast destroyed a bridge located behind the UN office and some people living nearby said they found cracks in the walls of their houses. No one was injured in the attack.

(Xinhua News Agency April 24, 2003)