To transport and erect the ballistic missile launched on Tuesday, North Korea apparently used a Chinese timber-hauling truck, highlighting the challenge of enforcing sanctions to curb the North's weapons program.

North Korea state television showed a large truck painted in military camouflage carrying the missile. It was identical to one that a U.N. sanctions panel has said was "most likely" converted from a Chinese timber truck.

Since 2006, U.N. sanctions have banned the shipment of military hardware to North Korea. But control of equipment and vehicles that have "dual-use" military and civilian applications has been far less stringent.