April 26 (Reuters) - Boeing said on Friday that it has closed a deal with aero supplier GKN Aerospace and its parent company Melrose Industries for a plant in St. Louis.

The deal immediately transitions GKN's St. Louis site's operations in support of F/A-18 and F-15 jet programs to Boeing, and the manufacturing of critical components will continue at the site.

Boeing also added that GKN's St. Louis workforce of about 550 people have been hired by U.S. planemaker.

Financial details of the details were not disclosed. (Reporting by Nathan Gomes in Bengaluru; Editing by Shailesh Kuber)