The revelation comes just a week after the force suffered a major data breach.

The 50-year-old was detained under the Terrorism Act following a search in the Dungiven area on Friday.

Detective Chief Inspector John Caldwell was seriously injured after he was shot several times at a sports centre in Omagh, Co Tyrone, in February.

Detective Chief Inspector John Caldwell was shot a number of times at a sports centre.

DCI John Caldwell was shot a number of times in front of his son in Co Tyrone a week ago.

The PSNI said the man was also being questioned about a separate incident in Claudy.

The incident in Derry on Sunday sparked a major security alert.

According to police figures there were just four bombing incidents between July 1, 2021 and June 30, 2022, compared with 13 in the previous 12 months.