U.S. aviation authorities have extended until the end of October 2018 the prohibition against flights in Simferopol and Dnipro for all U.S. air carriers, reads a statement by the U.S. Federal Aviation Administration (FAA).

The extension of the ban will come into force on October 27 this year due to the continuing unstable situation in the east of Ukraine.

As reported, the U.S. Federal Aviation Administration from December 29, 2014 prohibited civil aviation flights over Simferopol and Dnipropetrovsk (now Dnipro).

"This action extends the area, in which flights of the persons, defined by Special Federal Aviation Regulation (SFAR) No. 113, are prohibited, including the entire area of in-flight responsibility of Simferopol and Dnipropetrovsk," the then report read.

The document applies to all U.S. air carriers, U.S. commercial operators, persons exercising the privileges of a U.S. airman certificate, except when such persons are operating a U.S. registered aircraft for a foreign air carrier, and operators of U.S. registered civil aircraft, except when such operators are foreign air carriers.

Later, on October 27, 2015. this ban was extended for a year.