The Biden administration is "open" to sending long-range cruise missiles for Ukrainian F-16s to Ukraine, Politico reported.

No final decision has been made, but the administration is working on the complicated details right now, a Biden administration source told Mediaite.

The Pentagon declined to comment on whether it had approved the transfer of the missile.

"We are considering a range of options to meet Ukraine's security assistance requests, but we do not have this information at this time," Pentagon spokesman Jeff Jurgensen said.

The debate over the Biden administration's willingness to investigate the JASSM transfer makes the missile the latest weapon in a long line of sophisticated advanced technologies once considered off-limits.

Some members of Congress and political opponents have accused the Biden administration of moving too slowly to give Kiev the equipment it needs to win the war.

Yet for a war that is only 30 months old, the approvals of the F-16, Abrams tanks, cruise missiles, Patriot air defenses and modern infantry carriers have transformed what was a Soviet-era military into one of Europe's battlefield powerhouses.

As talks continue in the White House and the Pentagon, the administration official warned that there is much work to be done before any missiles reach Ukraine.

The AGM-158 JASSM is an air-launched cruise missile developed and manufactured by Lockheed Martin.

The missile has "GPS" guidance, and on the last trajectory it uses an infrared camera to find and capture the target.

The JASSM missiles are in service with the United States, several other NATO countries and America's closest allies.

The weight of the warhead is 450 kg, the range of the basic version is 360 km, and the "ER" version can fly 980 km.