Former treasurer Joe Hockey says his Twitter was “hacked” and police are now investigating after he appeared to like a derogatory tweet about PM Malcolm Turnbull.

A screen shot posted online shows Mr Hockey’s account liking a tweet calling Turnbull a “cranky pr*ck”.

“Don’t get too excited. It looks like I have been hacked. AFP now investigating,” Mr Hockey tweeted on Tuesday morning.

Mr Hockey’s twitter dramas come after Liberals Greg Hunt and Chris Pyne’s Twitter accounts liked pornographic tweets — Mr Pyne said at the time his account had been hacked.