EU Commission President Jean-Claude Juncker has begun his first State of the Union address since the UK's unexpected vote to leave the bloc, BBC News reports.

He warned the UK that access to the internal market relied on the free movement of people. There could be no "a la carte access", he said.

Juncker is aiming to rally the 27 countries staying in the EU to the challenges of migration and security.

The EU was not "at risk" from Brexit, he insisted.

But splits had led to "galloping populism" and Europe had to be protected from them.

In a blunt criticism of recent attacks on immigrants in the UK, he said he would "never accept Polish workers being beaten up and harassed on the streets of Essex".