An Indonesian armored vehicle pulls up outside of the U.S. Embassy in Jakarta
Counterterrorism experts say Thursday's closure of the U.S. Embassy in Indonesia was prompted by tips found posted on the Internet showing the most effective ways to attack the sprawling compound.

The website posting included a diagram of the embassy in Jakarta, including the U.S. ambassador's office. Written in Indonesian, the posting includes information on rocket-propelled grenades and the amount of TNT explosives required to penetrate the heavily reinforced facility.

U.S. Embassy personnel in Jakarta have not responded to the web posting, saying only the closure of the embassy was due to an unspecified security threat. Officials say the embassy will be closed until further notice.

Some information for this report provided by AP and Reuters.