WASHINGTON—The United States on Friday imposed sanctions on five entities it accused of providing support to North Korea’s development of weapons of mass destruction and ballistic missile programs, increasing pressure on Pyongyang following a recent series of missile launches. The Treasury Department in a statement said the action targets the Ministry of Rocket Industry, which it said is a North Korean weapons of mass destruction research and development organization directly linked to the development of new intercontinental ballistic missiles (ICBMs). It also designated four of the organization’s subsidiaries—Hapjanggang Trading Corporation, Korea Rounsan Trading Corporation, Sungnisan Trading Corporation, and Unchon Trading Corporation. North Korea’s mission to the United Nations in New York did not immediately respond to a request for comment on the new sanctions. Friday’s move follows a rise in tensions with North Korea after two ballistic missile tests on Feb. 26 and March 4 that involved a new ICBM …