Festival of lights near St Petersburg opens with a call for dialogue

'Light Nights' is a light show which opened its fourth edition in Gatchina, Russia.

The organisers say the festival is a platform for bringing together the best creative forces in the field of light art.

Artists from Russia, Belarus and Lebanon present 30 video projections created with light and innovative technologies, including a 30-metre lighthouse and a bridge.

The participating artists are largely designers, architects and engineers.