A 55-year-old man has been arrested in connection with the murder of Lyra McKee in Derry.
The man was arrested in Belfast this morning under the Terrorism Act.
Police continue to question two men aged 24 and 29 who were arrested in Derry yesterday.
Lyra McKee, a journalist, was shot dead in the Creggan on April 18 2019 as she observed a riot.
Three men have already been charged with her murder and another two men have been charged with rioting and associated offences.