A private Cessna plane has crashed into the Baltic Sea off Latvia’s coast in mysterious circumstances, writes BBC.

NATO jets were scrambled to follow the plane on its erratic flight which began in southern Spain.

Officials say the plane - believed to have had four people on board - had been due to land in Cologne, Germany, but instead headed out into the Baltic.

NATO pilots and Swedish officials tracking the plane could see no-one in the cockpit.

“The aircraft was flying from Spain to Cologne, but during the flight the aircraft changed its flight route. Air traffic controllers were unable to communicate with the aircraft’s crew, the Cessna 551 was registered in Austria - but the owner was in Spain”, - the Latvian Civil Aviation Authority said in a statement.