A handover procedure for a terminal device in a system comprising the terminal device, a source network access node to which the terminal device is initially connected, and one or more candidate target network access nodes. The method includes determining that a first measurement for radio channel conditions for a first candidate target access node satisfies a first predefined criterion; receiving at the terminal device connection information for use by the terminal device for connecting to the first candidate target network access node; establishing a second measurement for radio channel conditions between the terminal device and one of the one or more candidate target network access nodes; determining that the second measurement of radio channel conditions satisfies a second predefined criterion; and transmitting from the terminal device an indication that the second measurement of radio channel conditions for the first candidate target network access node satisfies the second predefined criterion.