About 20,500 people are forced to leave a large area in the center of Cologne so that experts can turn off three bombs who have not exploded by World War II.

US bombs were discovered on Monday at a yard in the Neighborhood.

The bombs that have not exploded are still a risk and the city has been excluded within a 1,000 -meter radius, which was described as “the largest operation since the end of World War II”.

Houses, shops, hotels and schools have been ordered to be evacuated, as well as a large hospital and an important train station.

‘If you deny, We will accompany you from your home -if needed by force– Together with the police, “the authorities said.

Residents were told that if they refused to leave their homes after the start of the evacuation, they could face high fines.

Some Intensive Care Patients received help with ambulances from Eduardus Hospital.

The country’s bombs neutralization plans to break up the ten -ton bombs (10,000kg) and 20 tonnes (20,000 kg) on ​​Wednesday, but it will not be possible to do so until all residents of the area leave for their own safety, the city said.

The evacuation in the neighborhoods of the Old Town and Deyx started with officials going door-to-door to tell people that they need to leave their homes.

Public transport had serious problems, as all roads in the area were closed, many train routes were canceled and the Messe/Deutz train station closed from 08:00 local time (07:00 BST).

Authorities have set up two reception centers for people who have nowhere to go during the evacuation period.

Residents were asked to “remain calm”, bring their identity with them and any necessary medicines and take care of their pets.

Cologne-Bonn Airport announced that flights will continue normally, but the trip to the airport by train or by road may be difficult.