In this photo by Achmad Ibrahim, officers from an Indonesian police bomb squad search for suspicious materials Wednesday ahead of Christmas Eve Mass at the Messiah Cathedral in Jakarta. The cathedral, located across from Jakarta's main Istiqlal mosque, was built in 2008 and is one of the largest churches in the Indonesian capital. Christians account for about 10 percent of the 250 million people in Indonesia, the world's most populous Muslim nation, while nearly 90 percent of the population is Muslim. Indonesia's constitution guarantees freedom of religion, but there have been reports of violence against religious minorities, including Christians, in recent years. The bomb squad officers were conducting a routine search Wednesday, and there was no specific threat reported.