No selfies allowed by voters in polling booths

Last updated at 11:16
Polling booth

Staff at polling stations across the country have been told to stop people taking selfies as they vote.

Even though it's not illegal to take a pic of yourself when voting, authorities are worried selfies could give away how other people have voted.

Anyone who gives away how someone else votes, even accidentally, could get a £5,000 fine or even go to prison.

Today's big vote is for the European Parliament as well as local councils in England and Northern Ireland.

Guide: Why are the European elections important?

Staff have been told to put up "no photography" signs in polling stations.

Some have been told how to tell what a selfie is - and what to do when they spot someone about to take one in or around a polling booth.

Now some officials are saying that the law needs to be updated, to make it clearer: they say it was written over a century ago, when camera phones didn't exist.