The U.N. Security Council has delayed its vote on the proposed sanctions against North Korea until Wednesday, at the request of Russia.

Last week, the United States and China proposed expanded sanctions against North Korea, which include mandatory inspection of cargo leaving or entering North Korea, by sea or air. The United States and China had spent seven weeks negotiating the new sanctions in response to North Korea’s nuclear tests.

The U.N. Security Council, composed of 15 member nations, will vote on the resolutions on Wednesday. The vote was delayed after Russia invoked a procedural 24-hour review of the resolutions.  Russia has requested more time to review the lengthy text of the resolutions and consider the changes to the current sanctions.