Four men have been arrested as part of the murder investigation of journalist Lyra McKee.

The men, aged 20, 27, 19 and 52, were arrested in Derry and are being held at Musgrave Serious Crime Suite in Belfast this morning under the Terrorism Act.

Lyra McKee was murdered by the so-called “New IRA” on the evening of April 18, 2019, while reporting on riots that had broken out in the Creggan estate in Co. Derry.

Detective Superintendent Jason Murphy has renewed an appeal to the public for help in the Lyra McKee murder investigation.

Det Supt Murphy remains convinced that some people in 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,” he said.

Det Supt Murphy said he remains “determined to work with the community and local policing…to bring those who murdered Lyra to justice.”

He added: “I also know that many people were recording mobile phone video clips that night and whilst we had a huge response to my initial appeal for those videos, I believe that others may exist”.

Many tributes have been paid to the young woman, most recently, she was remembered at the 2020 GALAS awards.

A vigil took place in April 2019 in Dublin’s Garden Of Remembrance. Seamus Dooley, Irish secretary of the NUJ, told those gathered that the vigil was also a “celebration of a feminist, an activist, a daughter, a sister, a lover, a journalist, a remarkable human being, a kind, compassionate, funny and caring person who brought light and laughter wherever she went, even as often she was angry, frustrated and mad as hell at those who refused to move at the pace which she would have them move.

“A person who refused to accept that things had to be the way they were.”

If you have any information you can contact the independent charity Crimestoppers and speak to them anonymously on 0800 555 111.