Hamburg airport has just reopened after what appears to have been a gas leak that led to the evacuation of the airport.

According to various media outlets, up to 50 people had taken ill and authorities had evacuated terminal 1 and 2 while searching for the cause.

Some outlets had speculated that the source of the gas was discovered at the security check area and may have spread throughout the airport through the ventilation system system, but nothing that I have read confirms that in fact a passenger is to blame for this.

The airport had been closed for about 1 hour 15 minutes before being re-opened.