Four men have been arrested in Northern Ireland in connection with the murder of journalist Lyra McKee.
Ms McKee was shot dead during rioting in the Creggan area of Derry on April 18th 2019.
A group claiming to be the 'New IRA' claimed responsibility for the killing.
The PSNI this morning confirmed that four men - aged 20, 27, 29 and 52 - have been arrested in Derry under the Terrorism Act.
The arrested men have been taken to the Musgrave Serious Crime Suite in Belfast.
Detective Superintendent Jason Murphy renewed his call for the public to come forward with any information on Lyra's murder.
He said: "I have always believed that some people within the community know what happened and who was involved.
"I understand that people may be frightened to talk to us. I have previously given my personal assurance relating to anonymity for the purpose of this investigation and I renew this assurance today, as we approach the anniversary of Lyra’s murder.
"I want the community in Creggan to think about how that horrific attack impacted them personally and how it impacted the entire community."
He added that he believes more mobile phone video clips from the night of Lyra's murder may exist, and appealed for anyone who has such footage to send it to police.
