BRUSSELS — Turkey’s relationship with the West suffered a fresh blow on Monday when the European Union decided to suspend contacts between high-level officials, as well as to pull financial aid, in response to Turkey’s gas exploration in Cypriot national waters.

European Union foreign ministers meeting in Brussels said they would suspend about $164 million in aid to Turkey and shelve talks on an aviation accord. They also asked the European Investment Bank to review its lending to the country, which amounted to nearly $434 million in 2018.

Turkey has been benefiting from European Union funding as part of its now-stalled bid to join the bloc, while the aviation agreement that was under negotiation would have led to more passengers using Turkish airports, in particular the main international airport in Istanbul, as a transit hub.

The European Union measures came just days after the country’s relationship with the United States took a hit, with the first shipment of a Russian-made surface-to-air missile system to Turkey, a NATO member. Washington had warned that it would penalize Turkey for the purchase, but President Recep Tayyip Erdogan went ahead with it anyway.