"The minister and heads of regional authorities visited the Oktyabrsky Island where the Kaliningrad Stadium, which will host four group-stage matches of the World Cup, is located, and checked the work of the operational center," the ministry said in a statement published on its official website.

The minister also held a meeting with the head of Kaliningrad police.

The 35,000-seater Kaliningrad Stadium will see England play Belgium on 28 June.