Wellington, June 3 NZPA - Labour leader Phil Goff took an allegation of Richard Worth's inappropriate behaviour towards a woman to Prime Minister John Key about a month ago, it emerged tonight.

Wellington, June 3 NZPA - Prime Minister John Key has previously looked into an allegation around minister Richard Worth's behaviour toward women, he revealed this afternoon. Dr Worth resigned as a minister yesterday.

(Adds John Key press conference) Wellington, June 4 NZPA - National MP Richard Worth's future in Parliament is in doubt as police investigate a serious allegation against him.