A UK Government committee has been told that a ban on Russia accessing London’s marine insurance market may prove ineffective.

Lloyd’s Market Association head of aviation and marine Neil Roberts cautioned a meeting of Parliament’s Treasury Committee meeting that such sanctions may not be successful while the G20 governments remain split on their policy on Russian energy exports.

Roberts comments came as the UK considers whether to extend a ban on Russia accessing aviation and space cover in the London insurance market should be extended to the marine sector.