Both pilots of Su-27 fighter dead, - military spokesman

Both pilots of Su-27 fighter dead, - military spokesman

The status of a US pilot remains unclear after a Ukrainian fighter crashed on Tuesday during joint exercises in western Ukraine. "It involves more than 50 aircrafts from eight North Atlantic Treaty Organisation member-states and our planes - of the Ukrainian Air Forces", Ukranian President Petro Poroshenko said on October 11, 2018.

The circumstances of the crash - which occurred in the Khmelnytskyy region, around 180 kilometers southwest of Kyiv - have yet to be clarified, it added.

"We have seen reports claiming a USA casualty and can confirm a USA service member was involved in this incident", it said in a statement, adding that the circumstances of the crash were under investigation.

The Ukrainian Su-27UB fighter aircraft crashed in the Khmelnytskyi region of Ukraine during Clear Sky 2018 - a joint worldwide exercise which includes 950 personnel from the United States and eight other nations.

"We are aware of a Ukrainian Su-27UB fighter aircraft that crashed in the Khmelnytskyi region during Clear Sky 2018 today". "It is now under investigation and we will continue to provide more information as it becomes available".

Details of the plane crash, including the cause, are not clear.

USA servicemen stand in front of US F-15 fighter during an air force exercises on Starokostyantyniv military airbase in Ukraine, Oct. 12, 2018. The exercises, called Clear Sky-2018, include members of the California's National Guard's Fresno-based 144th Fighter Wing group, according to a Facebook post. "This exercise aims to enhance regional capabilities to secure air sovereignty and promote peace and security through cooperation, collaboration and interoperability with North Atlantic Treaty Organisation partners and other allies in the region".