Kenyan police killed three women who attacked a police station in the coastal city of Mombasa on Sunday.
Mombasa police chief Parterson Maelo said one of the women threw a firebomb at officers as another pulled out a knife.
"The station caught fire. Police shot the three and killed them," Maelo told Al Jazeera. "Two officers are in hospital with wounds. Presumably, it is a terror attack."
Maelo said the three women showed up at the police station around 10:30 a.m. local time to report a stolen phone.
The women began their attack as officers were questioning them about the stolen phone.
Two of the suspects were identified as Kenyans Fatuma Omar and Tasmin Yakub Abdullahi Farah, according to police spokesman Charles Owino.
Officers recovered two bullet-proof jackets and an unused petrol bomb from the dead suspects, according to Al Jazeera.
The Associated Press reported that one woman was wearing a suicide vest that didn't detonate.
Police raided Farah's home and arrested three Somali refugees for questioning.
It is unclear whether the women were associated with the terrorist group al-Shabab, which is al-Qaida's affiliate in the region.
Al-Shabab has recruited hundreds of Kenyans in the past and used them in attacks on the country, including the April 2015 attack at Garissa University.
The Associated Press contributed to this report.