Police in Northern Ireland on Saturday arrested two teenagers in connection with the fatal shooting of a journalist during rioting in the city of Londonderry.
The men, aged 18 and 19, were detained under anti-terrorism legislation and taken to Belfast for questioning, the Police Service of Northern Ireland said.
The men have not been identified or charged. Police had said earlier there was one gunman who pulled the trigger who had been backed by an "organization," and said they were searching for multiple suspects.
Lyra McKee, 29, a rising star of investigative journalism, was shot and killed, probably by a stray bullet aimed at police, during rioting Thursday night. Police said the New IRA dissident group was most likely responsible and called it a "terrorist act."
The use of a firearm apparently aimed at police marks a dangerous escalation in sporadic violence that continues to plague Northern Ireland 21 years after the Good Friday peace agreement was signed.