A US man reportedly stabbed himself just before he was to go on trial yesterday for sex crimes against a runaway who said she was secretly hidden in his home for a decade.

A US man reportedly stabbed himself just before he was to go on trial today for sex crimes against a runaway who said she was secretly hidden in his home for a decade.

A woman who disappeared as a teenager 10 years ago had been living with a middle school security guard who did not allow her to leave his home for several years, police in Pennsylvania said.