The US and Philippine governments both alleged Myrna Mabanza was involved in two 2016 fund transfers – one of up to US$107,000 – to the then leader of ISIS-Philippines.
Army forces clashed with about 15 militants in a series of shoot-outs, with the dead including suspects in the December 3 bombing that killed four Catholic worshippers and wounded dozens.
The suspects both have outstanding arrest warrants for crimes such as murder and kidnapping. Islamic State claimed responsibility for the blast that killed 4 people during a Catholic Mass on Sunday.
Police are looking into at least two suspects they believe were behind the blast that killed at least four people during a service at a university gymnasium in Marawi, which Islamic State militants claimed.