President Donald Trump has agreed to meet North Korean leader Kim Jong Un by May for direct talks about that country’s nuclear arms and long-range missile programs, according to a senior South Korean official. Such a meeting would be the first between an American president and a North Korean leader.

Trump “will accept the invitation to meet with Kim at a place and time to be determined. We look forward to the denuclearization of North Korea. In the meantime, all sanctions and maximum pressure must remain,” Press Secretary Sarah Huckabee Sanders said in a statement.

White House officials did not explain what Trump would offer Kim in return for disarming.

Kim personally invited Trump to the negotiating table during recent meetings with top South Korean officials, Chung Eui-yong, the South’s national security adviser, said during an extraordinary statement delivered Thursday evening outside the West Wing.

The North Korean leader said he intends to stop nuclear and missile tests while talks are ongoing, according to Chung, who added that Kim assured the South Korean delegation last week that he is “committed” to giving up his atomic arsenal.