Washington: Three senior officials with the Democratic National Committee have resigned, the DNC said on Tuesday, amid a shake-up following a hack of thousands of emails that embarrassed the party just as it staged its national convention last week.

The resignations of DNC Chief Executive Officer Amy Dacey, Communications Director Luis Miranda and Chief Financial Officer Brad Marshall were announced by interim Chairwoman Donna Brazile.

Brazile, who took over the role after Debbie Wasserman Schultz stepped down last week, did did not mention the hacks or give a reason for the resignations in a statement on the reorganisation, but cast the changes as looking ahead to the US general election on November 8.

The hack on the DNC emails stirred discord at the start of the party's convention in Philadelphia where Hillary Clinton formally accepted her party's presidential nomination for the November 8 election.