Updated

Authorities evacuated Dublin International Airport on Friday for the second time this week over a bomb scare, but permitted passengers and staff back into the terminal after two hours.

An Irish army team conducted a controlled explosion on a suspicious package that had been abandoned in the airport's arrivals hall, but it contained no explosive device, police said.

Vincent Wall, spokesman for the Dublin Airport Authority, said the evacuation of thousands of passengers and airport workers proceeded similarly to Tuesday, when police arrested a Dublin man who had been holding a bag over his head and claiming he had a bomb. The bag contained clothes and papers.

Friday's alert caused traffic gridlock around the airport in suburban north Dublin, and on the airport tarmac, where more than 20 planes landed during the alert.