Millions of Greeks vote over important money deal

Imagine living in a country where it's really hard to get money from banks and cash machines.

That's happening in Greece right now and today there's a big vote to decide what could happen in the future.

Millions of Greeks are voting on whether to accept the terms of a deal, offered by a group of other countries, to give Greece more money to help their economy.

The result of the vote could have a big impact on many countries including the UK.