A suspected suicide bomber in a Muslim woman’s traditional outfit was killed when setting off explosives during an attack on a military detachment in the southern Philippines, the only casualty in the latest deadly bombing on Jolo Island this year, authorities said late Sunday.

The bombing was the second to occur in the volatile Philippine south in as many days, after a blast injured eight people at a market in Sultan Kudarat province on Saturday, officials said. On Sunday, Islamic State claimed it was behind the attack in Sultan Kudarat, the Reuters news agency reported, citing a statement issued by the extremist group.

In Saturday’s attack in Sultan Kudarat province, CCTV footage obtained by police showed a man disguised as a woman leaving a bag with the bomb next to motorcycles that were parked outside a bakery, authorities said.

Philippine military officials said that the Bangsamoro Islamic Freedom Fighters (BIFF), a splinter faction of MILF that opposed the peace agreement and was now aligned with IS, likely carried out the marketplace attack on Saturday.

Read more: Benar News