PRAGUE, Czech Republic (CNN) -- A fire in the air traffic control tower at the Prague airport caused it to shut down and suspend or divert flights for several hours Saturday, a spokeswoman said.
No one was hurt and no essential equipment was damaged, but the fire created so much smoke that the tower had to be shut, spokeswoman Eva Krejci told CNN.
As a result, all flights in and out of Prague airport were suspended.
Officials believe the blaze, which broke out at 5:12 a.m. (11:12 p.m. ET Friday), was an electricity fire, Krejci said.
Air traffic was interrupted from 7:55 a.m. to 10:30 a.m. (1:55 a.m. to 4:30 a.m. ET), she said. Arrivals were sent to other airports and departures were delayed.
Ten flights were canceled, she said.