BEIJING, May 22 (Reuters) - China has taken counter measures against 12 U.S. military industrial companies and their senior executives, including units of Lockheed Martin and Raytheon, the foreign ministry said on Wednesday.

The measures, which include freezing movable, immovable and other types of assets in China, as well as banning entry for senior executives, would take effect from Wednesday. (Reporting by Liz Lee and Beijing newsroom; Editing by Andrew Cawthorne)