Nepal and China have agreed to boost co-operation along their shared border in the Himalayas.
According to the Chinese news agency, officials from both countries signed a deal on Monday following two days of meetings in Shanghai.
The agency said the two sides discussed ways of controlling criminal activity along the border.
It gave no details, but correspondents say the move may refer to efforts to stop Tibetan refugees trying to reach their spiritual leader, the Dalai Lama, who is living in exile in the northern Indian town of Dharmsala.
Tibetan refugee groups have complained that Nepal has recently been more active in stopping border crossings from Tibet, handing over captured Tibetans to the Chinese authorities.
From the newsroom of the BBC World Service