Former MP suspended from NSW Libs

Former federal MP Ross Cameron has been sin-binned from the the NSW Liberal Party.

"The state executive of Liberal NSW wishes to suspend my membership for 4.5 years," Mr Cameron tweeted, vowing to respond on Sky News on Sunday.

Mr Cameron's suspension followed his scathing attack on NSW Premier Gladys Berejiklian last year.

A NSW Liberal Party spokeswoman said the state executive met on Friday night to consider a motion to suspend Mr Cameron for a breach of the media code in October last year.

"The code is part of the party's constitution, and has been in place for many years," she told AAP.