A gang of up to seven men assaulted a man with hammers and knives in his Magherafelt home.
The gang forced their way into the Ashgrove Park home on Tuesday at around 9.20pm and the man was left needing hospital treatment.
His injuries were described as not life threatening. The gang were seen leaving in a dark-coloured BMW.
Police are treating the incident as an aggravated burglary and appealed for anyone with information to contact 101 or information can be passed anonymously to Crimestoppers on 0800 555 111.