KIEV, Ukraine (AP) — Funeral services have been held for a Ukrainian lawyer whose killing has sparked outrage and demonstrations outside the national police headquarters.

Iryna Nozdrovska's body was found in a river on Jan. 1 bearing multiple stab wounds. She was buried Tuesday near the village outside Kiev where she lived.

Ukrainian President Petro Poroshenko hailed police for their "brilliant work" in tracking down a suspect in the 38-year-old lawyer's slaying and making an arrest on Monday.

Nozdrovska had mounted a campaign to make sure the driver convicted of running down and killing her sister remained in prison. A court in late December rejected his appeal. Nozdrovska went missing two days later.

Ukrainian media report that the arrested suspect is the father of the man serving time for the death of Nozdrovska's sister.