According to authorities the first bomb exploded inside the Jolo cathedral, while the second blast targeted first responders near the entrance, Rappler reports.
According to https://www.rt.com/news, earlier police said at least 10 civilians and five troops are among those killed. Some 48 others were reportedly injured, including at least 33 civilians.
The explosive is still of unknown make and origin. Postblast investigation to be done. Suspects and motive to be identified and investigated. (1/2)No one has immediately claimed responsibility, but the island has in the past been targeted by bombings, kidnappings and beheadings perpetrated by Abu Sayyaf Islamists terrorists.