Officials: North Korea can produce its own missile engines

North Korea likely has the ability to produce its own missile engines and intelligence suggests it does not need to rely on imports, U.S. intelligence officials said on Tuesday, according to the Reuters news agency.

The assessment disputes a new study by the London-based International Institute for Strategic Studies that said that the engines for a nuclear missile North Korea is developing to hit the United States likely were made in factories in Ukraine or Russia and probably obtained via black market networks.