Former Assistant Chief Constable Duncan McCausland
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Duncan McCausland: Former senior PSNI officer released

20 June 2014 Last updated at 13:55 BST

A former senior Police Service of Northern Ireland (PSNI) officer who was being questioned about the awarding of police vehicle contracts has been released from custody.

Ex-Assistant Chief Constable Duncan McCausland was one of six men arrested in Northern Ireland and England on Tuesday morning.

His release is pending a report being sent to the Public Prosecutions Service.

Mr McCausland, who was one of the PSNI's most high-profile officers, retired in March 2011.

He said he "strenuously denies" the allegations.

BBC News NI's Helen Jones reports.