Joint US and Ukraine led military exercises continue

More than 1,800 troops from 18 different countries are taking part in a second week of US and Ukrainian-led military exercises in western Ukraine.

Russia has called the event a "provocation". However, American officials insist the multi-national training event in Ukraine is not a response to the conflict in the east of the country.

Tom Burridge reports from Ukraine's largest military training base in Yaroviv.