UK, EU agreed the clock was ticking on Brexit and need to push on was in both sides' interests - Sources

According to sources quoted by Reuters, UK and EUs agreed the clock was ticking on Brexit and need push on was in both sides' interests. Also, the source further adds that Britain stood by the demand that talks on future relationship run in parallel with talks on UK's withdrawal from EU.

General mood in first day of brexit talks was "incredibly positive", made "awful lot of progress" on many areas, RTRS sources said.