Under the Montreux Convention, The United States notified Turkey of its intention to send warships to Ukraine via Turkish straits in Istanbul.
The US sent diplomatic notification to Turkey for passage of its two warships through the Turkish straits, Turkey's Anadolu Agency reported on Friday with reference to diplomatic sources.
"We were notified through diplomatic means 15 days in advance that two US warships would reach the Black Sea in accordance with the Montreux Convention," said the sources who asked not to be named due to restrictions on speaking to the media.
The sources said that the ships would reach the Black Sea separately on April 14 and 15, and they would remain there until May 4 and 5.
Earlier, a US defense official told that the United States is considering sending warships into the Black Sea in a show of support for Ukraine amid Russia's increased military presence on Ukraine's eastern border.
As reported, the US is obliged to give 14 days notice of its intention to enter the Black Sea under a 1936 treaty giving Turkey control of the straits to enter the sea.