Video 'shows British Syria suicide bomber'
14 February 2014 Last updated at 16:59 GMT
A video has been posted online that appears to show Abdul Waheed Majid, believed to be the first British suicide bomber to blow himself up in Syria.
The footage apparently shows the 41-year-old, from Crawley in West Sussex, dressed in white - next to the large armoured truck bomb which was driven into the walls of Aleppo prison on 6 February.
Police searched his house in Crawley this week. His family said they believed he was in Syria for humanitarian purposes.
Frank Gardner reports.