At least three Indonesian police officers were killed in two explosions near a bus station in the country’s Capital Jakarta on Wednesday, Reuters reported. At least 10 people, including five police officers, were injured in the incident at Kampung Melayu terminal, the police said.

The explosions were triggered by two suicide bombers, said National Police spokesperson Setyo Wasisto. Investigators said the explosives were packed into pressure cookers.

“The police officers were on duty to guard a group of people who were holding a parade,” Wasisto told the media. “The parade hadn’t passed yet when the blast happened. The two suspects were both male. Their identities will be released later.”

The explosions have yet to be claimed by any radical group. The Islamic State group has carried out several low-intensity attacks in the country since 2016.