Two luxury hotels in the Indonesian capital of Jakarta reopened for guests Wednesday, nearly two weeks after they were targeted in a deadly suicide bombing attack.

Officials say more stringent security measures are in place at the hotels.

Nine people were killed and more than 50 injured when the bombs ripped through the  J.W. Marriott Hotel and the nearby Ritz-Carlton Hotel within minutes of each other on July 17.  Two suicide bombers were among the dead.

Authorities believe the blasts are the work of Malaysian extremist Noordin Top, suspected of masterminding several terrorist attacks as a member of the al-Qaida-linked Jemaah Islamiyah network.

Police have released sketches of the suicide bombers, and have arrested a man suspected of training to be a suicide bomber.   It is not clear whether he is suspected of involvement in the Jakarta bombings.

Jemaah Islamiyah has been blamed for a series of deadly attacks in Indonesia over the last few years, including two bombings on the Indonesian resort island of Bali in 2002 and 2005.

Some information for this report was provided by AFP and AP.