Lockheed Martin's logo is seen during Japan Aerospace 2016 air show in Tokyo, Japan, October 12, 2016. REUTERS/Kim Kyung-Hoon

WASHINGTON (Reuters) - Lockheed Martin Missiles and Fire Control, a unit of Lockheed Martin Corp LMT.N, was awarded a $547.9 million modification to an existing contract for 7,358 Hellfire II tactical missiles, the Pentagon said on Thursday.

Work will be performed in Orlando, Florida, with an estimated completion date of Sept. 30, 2020, the Pentagon said in a statement.