DPRK tests another rocket engine, US officials say

The DPRK has carried out another test of a rocket engine that could be fitted to develop an intercontinental ballistic missile (ICBM), a US official was quoted as saying on Thursday.

"A rocket engine was tested today," the US official told Reuters on condition of anonymity, without giving any further details.

The US believes the test could be for the smallest stage of an ICBM rocket engine, the official noted.

The test came one day after US Secretary of State Rex Tillerson urged China to put more pressure on the DPRK to restrain its nuclear weapons and ballistic missile programs.