ANKARA, Turkey (AP) -- Turkey has announced that Russia will hold live-fire naval exercises in the eastern Mediterranean, amid escalating tensions between Turkey and its coastal neighbors Greece and Cyprus over rights to search for energy resources in the region.
The navigational notice issued late on Wednesday said the Russian exercises will take place Sept. 8-22 and Sept. 17-25 in areas of the Mediterranean where Turkish seismic research vessels are operating.
There was no immediate comment from Russia on the exercises, which Turkey announced after the United States said it was partially lifting a 33-year-old arms embargo against ethnically divided Cyprus.
It's unclear why NATO-member Turkey would announce such drills on Moscow's behalf, but the two countries have in recent years significantly strengthened their military, political and economic ties. They are coordinating closely on their military presence in Syria, while Turkey has purchased Russia's advanced S-400 missiles and has broken ground on a Russian-built nuclear power plant on its southern coast.
Turkey has reacted angrily to the U.S. move that it said went against the "spirit of alliance" between Washington and Ankara. It also warned that it would harm efforts to reunify Cyprus, which is split between Turkish Cypriot and Greek Cypriot communities. Turkish officials have also vowed to take steps to guarantee the security of a self-declared Turkish state in the island's northern third.
Turkey's announcement comes at a time of increased friction between Turkey on the one side and Greece and Cyprus on the other over offshore energy exploration rights. Warships from Greece and Turkey have been shadowing each other in recent weeks as Turkish survey vessels and drill ships continue to prospect for hydrocarbons in waters where Greece and Cyprus claim exclusive economic rights.
The U.S. embargo, imposed in 1987, was designed to prevent an arms race that would hinder U.N.-facilitated reunification efforts for Cyprus. It was directed against the southern, Greek Cypriot part of the island, where Cyprus' internationally recognized government is seated.
Cyprus split in 1974 when Turkey invaded following a coup by supporters of union with Greece. Turkey is the only nation to recognize a Turkish Cypriot declaration of independence and it maintains more than 35,000 troops in the north of Cyprus.
Washington said it was lifting the arms embargo against Cyprus for one year -- with the option of renewal -- to let it procure non-lethal equipment.
U.S. Ambassador to Cyprus Judith Garber said the embargo lifting had no connection to "valued partner and ally" Turkey but aimed to strengthen regional security and to "counter malign actors in the region."
Garber said Washington waived a requirement that Cyprus cease to offer refueling and other port services to Russian warships, but that it would continue to "encourage" Cypriot government authorities to deny those services.
"We believe that Russia is playing a very destabilizing role in the region, especially in Syria," Garber said.
Russia maintains a sizable naval presence in the eastern Mediterranean and regularly conducts naval maneuvers. But the announcement of the latest live-fire drill may be a less-than-subtle message that Moscow remains a major regional player whose influence won't be diminished by Washington's embargo move.