Four men have been arrested in connection with the murder of journalist Lyra McKee
Lyra McKee was shot dead during rioting in Derry on April 18th last year.
A group claiming to be the 'New IRA' claimed responsibility for her death.
The PSNI confirmed this morning that four men - aged 20, 27, 29 and 52 - have been arrested in Derry under the Terrorism Act.
