Two teenagers have been arrested in connection with the murder of journalist Lyra McKee in Londonderry.
Lyra (29) was shot during disturbances in the Creggan area of the city on Thursday night. Police believe the New IRA is behind the killing.
On Saturday morning detectives arrested two men, aged 18 and 19 under the Terrorism Act, in connection with the murder.
They have been taken to Musgrave Serious Crime Suite for questioning.