Russia suspected of jamming GPS signal on aircraft carrying Grant Shapps

RAF jet was taking defence secretary back to UK from Poland, and flying near Russian exclave of Kaliningrad

Russia is believed to have jammed the satellite signal on an RAF aircraft carrying Grant Shapps back from Poland, according to government sources.

Defence sources said there was no danger to Shapps, who was travelling back to the UK, though they called it a wildly irresponsible" act of electronic warfare.