The second largest airport in Germany has been partly evacuated yesterday in the morning. About 190 incoming and outgoing flights have been cancelled for security reasons throughout the day.

The situation was triggered by a person who entered the clean area of Terminal 2 through an emergency exit door from the unclean area.

“The handling in Terminal 2 as well as in areas B and C of Terminal 1 is currently discontinued. As soon as we have further insights, we inform you about the known channels,” the airport staff tweeted in the official Twitter account of the Munich Airport.

Passengers and airlines’ staff members were kept informed about the situation through the same account, throughout the whole day.

According to a press release issued later by the Munich Airport, a Spaniard in Terminal 2 had passed through an emergency exit door from the uncontrolled area in the controlled. The man had arrived from Bangkok and wanted to fly to Madrid. He was later found and interviewed, but investigations revealed nothing suspicious.

The press release also announced that that flight operations at Munich Airport normalized again. While Terminal 1 and parts of Terminal 2 were closed during the police operation, they were re-opened a few hours later. Passenger check-in resumed at 11:13 am local time, but passengers could not enter Terminal 2 until 12:45 pm to prevent overcrowding.

“The police action was triggered by a passenger who had opened an emergency exit door in Terminal 2 when he arrived at Munich Airport. The passengers were informed during the blocking on loudspeaker announcements and supplied with water bottles. From 11.13 clock passenger handling could be resumed,” read the press release.

About 190 flights were canceled for the entire day and over 5,000 passengers were affected due to the suspension while the airport warned that delays might take place even in the evening.

The Munich airport is one of Germany’s busiest aviation hubs and is one of the six airports in Germany with an international transit area.