Serial blasts strike churches in Indonesia, at least 11 dead

The Islamic State group has claimed responsibility

Suicide bombers on motorcycles and including a woman with children targeted on Sunday Mass congregations in three churches in Indonesia's second largest city, killing at least 11 people and wounding dozens in one of the worst attacks on the Christian minority, police said.

The first attack struck the Santa Maria Roman Catholic Church in Surabaya, killing four people, including one or more bombers, police spokesman Frans Barung Mangera told reporters at the scene. He said two police officers were among a total of 41 wounded.

The blast was followed by a second explosion minutes later at the Christian Church of Diponegoro and