Two men have been arrested over the robberies of two Countdown supermarkets in the lower North Island.

The men, aged 18 and 22, were each charged with two counts of aggravated robbery and would appear in Palmerston North District Court today, police said.

The charges related to the robberies of Broadway Countdown December 23 and Feilding Countdown on December 27.

However, Detective Sergeant Ashley Gurney said it was likely the pair would also later face charges over a robbery at Kelvin Grove Countdown on December 23.