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A number of major airlines are asking the state to intervene and prevent non-necessary infrastructure works from going ahead at Thessaloniki's Makedonia Airport, as that would entail having to slash traffic considerably.

A strike of the Romanian air traffic controllers on 30th of May caused a partial closure of the Romanian airspace, which led to 30% increase of traffic over Bulgaria, Bulgaria's air Traffic Control Service said on 31st of May, quoted by BNT.

At the peak of the Romanian strike yesterday, the management of the Bulgarian air traffic control served 113 aircrafts per hour.

Starting on March 30, the Bulgarian Air Traffic Services Authority (BULATSA), together with the air navigation services providers of Romania, ROMATSA and Hungary, HungaroControl, expand the Free Route Airspace for flights during the night within the three countries' airspace, BULATSA said in a press release on Thursday, cited by BTA.

Air-traffic controllers were to begin rolling 24-hour strikes on Sunday, with the action expected to ground flights on Monday, Wednesday and Thursday.

Passengers scheduled to travel should contact their airlines.

The Ministry of Foreign Affairs informed that, according to Greek media, all flights to and from airports in Greece will be cancelled on October 9, October 10, October 12 and October 13 due to 24-hour relay strikes of air traffic controllers.

Air-traffic controllers are to begin four 24-hour rolling strikes on Sunday to protest the draft law regarding changes to the Civil Aviation Authority. The strike is expected to mean no flights in or out of Greece for four days.

Archeology has been changing over the last decade through a quiet revolution that allows archeologists to see through the ground without digging. Here are just some techniques that allow archeologists to explore sites without damaging the artifacts:

Russian President Vladimir Putin announced on Tuesday that the country will boost its nuclear forces with forty new intercontinental ballistic missiles.

Putin stated that the missiles will be capable to overcome even the most technically sophisticated missile defence system, TASS news agency reports.

The Federation of Civil Aviation Authority Unions (OSYPA), which does not include air-traffic controllers, on Friday called a 48-hour strike for May 31 and June 1, a walkout that could cause disruption for those travelling over the Whit Monday long weekend.

Greece's air traffic controllers' union is calling for an urgent upgrade of the country's air traffic radar system and for more staff to be hired to handle the increasing number of tourists coming in.