Donald Trump has secured the Republican nomination for US president on day two of the Republican National Convention, the BBC reports.

The House Speaker, Paul Ryan, urged delegates to unite behind Mr Trump, a day after splits in the party were evident as the convention opened.

The Trump campaign also faces on Monday was plagiarised.

Mr Trump is expected to accept the nomination on Thursday.

His children played a prominent role on Tuesday, standing with the New York delegation as he was declared winner and delivering remarks.