UK foreign secretary Philip Hammond said: "I strongly condemn North Korea's ballistic missile technology test.
This is a clear and deliberate violation of a number of UN Security Council Resolutions.
North Korea's actions continue to present a threat to regional and international security.
"In conducting this provocation, North Korea has clearly demonstrated that it is intent on prioritising the development of its nuclear and ballistic missile programmes over improving the well-being of its own people.
The rocket launch, a month after Pyongyang claimed a successful hydrogen bomb test, has been condemned by the US, Japan and South Korea, who have requested an emergency meeting of the UN Security Council to discuss the issue.
South Korea says it is to begin discussing with the US the deployment of a missile defence system.