Investigations underway into claims votes stored incorrectly in Cowan

There are claims ballot papers in the knife-edge West Australian seat of Cowan were not stored or signed off properly.

Labor's Anne Aly has a narrow 750 vote lead over Liberal incumbent Luke Simpkins in the seat, which is one of more than a handful still in doubt after Saturday's federal election.

The Australian Electoral Commission is looking into the claims of incorrect storage following the concerns of Liberal officials, The Australian reports on Wednesday.

AEC spokesman Phil Diak wasn't worried by the claims, saying the votes were always in secure containers.

A form which records the seals on the boxes was with the officer-in-charge rather than transferred, but it was always in the AEC's possession, he told Sky News.

Mr Diak also said it was not uncommon for some votes not to be initialled given the large volumes.