Suicide bombers have killed at least 11 people and wounded 41 others in attacks on three churches in Surabaya, Indonesia, according to officials.
East Java police spokesman Frans Barung Mangera confirmed that the explosions took place in the churches and injured were taken to a hospital. “All places where the public can gather, security has been tightened in those places.”
Two police officers are among those being treated at a hospital.
"Right now there are only three locations. Do not believe in misleading information that (the bomb) exploded in five locations or any others," Mangera added.
The bombers targeted the Santa Maria Catholic Church, the Indonesian Christian Church and the Pentecost Central Church.
St. Maria was the site of the first blast, which occurred at 7.30 a.m. local time Sunday (8.30 p.m. Saturday ET), before blasts at 7.35 a.m. and 8 a.m., state-run news agency Antara reported. The blasts all occurred within 10 minutes of each other, police said.
Indonesia is the world's most populous Muslim country with more than 82% of its roughly 260,500,000 people following Islam. Around 10% of the population is Christian.
Indonesia has been plagued by al-Qaeda affiliated group Jemaah Islamiyah, which claimed responsibility for 11 attacks between 2000 and 2010, including the 2002 Bali bombings, which left more than 200 people dead.