What could happen during the US government shutdown?

A US government shutdown has taken effect, after Republicans and Democrats could not agree to settle their differences and extend funding. It is the first federal shutdown for nearly seven years. But what could it mean for government workers and which services could be affected?

BBC Verify's Nick Beake has been looking at the potential impact.

Produced by Aisha Sembhi. Graphics by Mesut Ersoz. Additional reporting by Joshua Cheetham.