Poland border crisis: Tense stand-off with hundreds of migrants

Hundreds of migrants have gathered at a crossing on the Poland-Belarus border but are being stopped from entering the EU by Polish troops.

The EU has accused Belarus of pushing migrants towards its eastern borders to undermine security, a charge it denies.

The BBC's Steve Rosenberg reports from the scene, where the migrants are trapped between Polish guards on one side and Belarusian guards on the other.