Exclusive - U.S. plans to sell armed drones to Ukraine in coming days - sources

FILE PHOTO: Workers prepare an MQ-1C Gray Eagle unmanned aerial vehicle for static display at Michael Army Airfield, Dugway Proving Ground in Utah in this September 15, 2011 US Army handout photo obtained by Reuters February 6, 2013. REUTERS/U.S. Army/Spc. Latoya Wiggins/Handout (UNITED STATES - Tags: MILITARY POLITICS) THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS/File Photo

WASHINGTON (Reuters) - The Biden administration plans to sell Ukraine four MQ-1C Gray Eagle drones that can be armed with Hellfire missiles for battlefield use against Russia, three people familiar with the situation said.

The sale of the General Atomics-made drones could still be blocked by Congress, the sources said, adding that there is also a risk of a last minute policy reversal that could scuttle the plan, which has been under review at the Pentagon for several weeks.