"If pilots on Oceana or elsewhere report airfares that affect training or risk them, Senator Warner wants to answer. It doesn't matter if it is weather balloons, green men or anything else – we can't ask our pilots to risk their life unnecessarily, "said Rachel Cohen, spokesman for Virginia Sen. Mark Warner, to CNN.
President Donald Trump recently confirmed that he was also informed of reports by naval pilots who discovered unidentified flying objects .
A marine official told CNN at the time that the Navy does not believe foreigners have fled around the US airspace.
But there have been "a number of reports of unauthorized and / or unidentified aircraft entering various military-controlled areas and designated airspace in recent years," the Navy said in a statement.
Navan said that these types of "intrusion" constitute both a security risk and a security risk.
"For security and security considerations, Navy and USAF take these reports very seriously and examine every report," the statement said.