The advisory issued on Sunday calls for Korean citizens to cancel or postpone their trips to Israel and to leave the country if they are already there, unless for urgent matters, a news agency quoted the ministry.

Heathrow has said that similar strikes in recent weeks have had minimal impact on the airport. It says it will do everything it can to minimise the impact of the walkouts on passengers.

Hundreds of flights to and from Italy, serving the U.K. travellers, have been cancelled or severely delayed ahead of the latest air-traffic-control strike.       Apart from this, many Finnair flights to and from the airline’s Helsinki base have …