Pauline Hanson and Barnaby Joyce have been labelled "lying cowards" by a federal Liberal MP as a row over an alleged war criminal intensifies.

Liberal MP Andrew Hastie claimed in an email to supporters this week that Hanson had branded him a traitor, following a cartoon video posted to the One Nation leader's X account.

The nine-minute video, posted on 23 July, remained pinned at the top of the senator's X account.

Read the full story at SBS News - Latest.