Jakarta, July 17 (Xinhua) At least four people were killed and several injured in explosions at Ritz Carlton and Marriott hotels here Friday morning, a media report said.

The first blast took place at 7.55 a.m. (0055 GMT) and minutes later the second one occurred. 'Two explosions have taken place in two locations,' south Jakarta district police Commissioner Firmnan said.

An eye witness said that she saw that at least three foreigners with blood on their bodies being carried to an ambulance. The wounded were rushed to nearby Jakarta Hospital.