These latest comments by Choe Son Hui came amid stepped up international efforts to press North Korea and ease tension over its pursuit of nuclear arms.
The Malaysian police's Narcotics Crime Investigation Department (NCID) and Singapore's Central Narcotics Bureau (CNB) jointly busted a regional drug syndicate based in Malaysia.
Chinese Vice Foreign Minister Liu Zhenmin says both the countries have agreed to follow their consensus to continue stabilising the situation and to keep pushing talks.