John Caldwell: Two men released after arrests over police officer shooting

Det Ch Insp John Caldwell has been involved in a number of major investigations

Two men arrested in County Tyrone by detectives investigating the attempted murder of senior detective John Caldwell have been released.

A 28-year-old man was arrested following the search of a house in the Omagh area.

Meanwhile, a 70-year-old man was arrested following the search of a property in Dungannon.

Det Ch Insp Caldwell suffered life-changing injuries in the attack in Omagh in February.

Police believe the dissident republican group the New IRA was behind the attack.

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• Timeline of dissident republican activity

The two arrests bring the total number of people questioned in the investigation to 17.

Det Ch Insp Caldwell, 48, was left critically ill after he was shot while putting footballs into his car following a coaching session with a youth team.

The shooting, which happened in front of school children, has been widely condemned by political representatives across Northern Ireland.

He is one of the best-known detectives in the PSNI, often fronting press conferences on major inquiries during his 26-year career.