North Korea, as Pyongyang could be preparing a fifth nuclear test ahead of its Seventh Party Congress in May.The Information Center for Human Rights and Democracy, a nongovernmental organization in Hong Kong, announced Wednesday that Beijing has dispatched 2,000 soldiers along the border, South Korean news service Newsis reported.
China has previously deployed troops along its border with North Korea.
In January after Pyongyang announced a "successful" hydrogen bomb test, China reportedly sent 3,000 soldiers to its northeastern region, and also sent troops during the North-South land mine provocation last August. In late 2013, China also dispatched troops in response to the execution of Kim's uncle-in-law, Jang Sung Taek.
The center also said more Chinese military personnel were stationed at two major observation posts, and the guards are acting as lookouts 24 hours a day.
Some of the troops are responsible for measuring the radioactive material that could be emitted in the event of a North Korea nuclear test, the Center said.