The Democratic leader in the US Senate says the head of the FBI may have broken the law by revealing the bureau was investigating emails possibly linked to Hillary Clinton.

Harry Reid accused FBI director James Comey of violating an act which bars officials from influencing an election, reports the BBC.

News of the FBI inquiry comes less than two weeks before the US election.

The bureau has meanwhile obtained a warrant to search a cache of emails belonging to a top Clinton aide.

Emails from Huma Abedin are believed to have been found on the laptop of her estranged husband, former congressman Anthony Weiner.

There are reportedly 650,000 emails to search through, making it unlikely investigators can give a verdict on them before election day.

BDST: 0924 HRS, OCT 31, 2016
SR