Facebook will lift a ban on political advertising imposed after the US election to curb the spread of misinformation, and it has pledged to investigate whether its political ads systems need a further overhaul.

Advertisers would be able to resume running political ads on March 4, Facebook said in a blog post on Wednesday. It said it had introduced the temporary moratorium “to avoid confusion or abuse following Election Day.”

The social media company said it had received “feedback” about its ads system during the latest election cycle, including its inability to distinguish between ads from politicians and political groups and social issue ads from advocacy groups, for example.