US presidential candidate Donald Trump has apologised for obscene comments about women he made in a newly released videotape from 2005.

Mr Trump said that "these words don't reflect who I am... I apologise".

In the video, Mr Trump says "you can do anything" to women "when you're a star" and brags about trying to grope and kiss women.

Top Republicans condemned the comments. His election rival Hillary Clinton called them "horrific".