By Bradley Jolly Planes are unable to land at UK airports due to heavy fog. Several aeroplanes are circling above Belfast City Airport in a bid to be granted permission to make a safe arrival. One has been diverted to Dublin, it is understood. Belfast International Airport is also believed to be affected. Images from Flightrader show several planes circling over Northern Ireland’s capital, unable to land due to the conditions. Fog is expected to continue to blanket the city through until Monday morning, forecasters believe. Temperatures are also set to plunge overnight. The Belfast Giants’ Eli…