Frankfurt, Jumada I 16, 1438, Feb 13, 2017, SPA -- An unexploded bomb dating back to World War II has been found near Frankfurt airport and was set for a controlled detonation later Monday, according to German police officials in the city of Darmstadt, dpa reported. The bomb weighs around 250 kilograms, was discovered at 1:30 pm (1230 GMT) in a field in the vicinity of the town of Kelsterbach. Officials are planning to defuse the bomb at around 11 pm, and have blocked a highway and a train line for that purpose. People travelling by car have been told to circumvent the area, as traffic is likely to be heavily disrupted. Certain buildings belonging to the airport will be affected as well, but Frankfurt airport's management company Fraport said that it is unlikely that air traffic will be affected. It is standard practice for air traffic to stop at Frankfurt airport at 11 pm. An area of around 700 metres around where the bomb was found has been cordoned off for safety reasons by the police. An industrial complex, a hotel as well as a building housing refugees are within the vicinity of the bomb, according to police. -- SPA 23:51 LOCAL TIME 20:51 GMT www.spa.gov.sa/w331777