Stand-up comedians Tony Law and Scott Gibson took to the London Underground to perform some free comedy routines for those using the tube. The duo improvised more than three hours of stand-up throughout the night, giving tube-goers an unexpected kickstart to their evening in the city.

This stunt - dubbed The Comedy Central Line - was set up to promote the LastMinute.com Fringe Comedy Award Shows, which are taking place this month at the Lyric Theatre on the 17th, 24th and 31st October. More details and tickets