A Greek extreme far-right lawmaker who wanted to travel with his licensed handgun on a domestic flight drew unwanted attention after the firearm accidentally went off during check-in procedures at Athens Airport.

Police said nobody was wounded in Thursday's incident, which occurred in an office away from the busy airport's public areas as the Golden Dawn lawmaker was handing over the gun to airline officials.

The party, which rejects the neo-Nazi label attached to it by mainstream parties and international rights groups, holds 18 of Parliament's 300 seats.

The incident follows a heated debate over politicians' firearms licenses, in a country where legal gun ownership is uncommon and strictly regulated.

The Democratic Left minority governing coalition partner on Wednesday urged authorities to review Golden Dawn lawmakers' gun licenses.