How could the UK be affected by Greece money problems?

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.

Over the last 10 years, Greece borrowed lots of money from other countries, but now they are struggling to pay it back.

On Sunday, Greek people voted against accepting a deal, which was offered by the countries who Greece owes money to.

No one knows what will happen now, but Greece still owes the money, and things could be very difficult in the next few days.