A recount of ballots in the US presidential election has been called in the state of Wisconsin.

Green Party Presidential candidate Jill Stein has asked for the recount, in a state that was narrowly won by Donald Trump.

She says she wants to ensure that hackers did not interfere with the electronic voting process in the state.

Ms Stein's team has also raised millions of dollars to pay for recounts of the US Presidential election ballots in Pennsylvania and Michigan.