Chinese navy ships and military aircraft briefly crossed the Taiwan Strait median route on Thursday morning, a source of Taiwan that was given a briefing about the problem to Reuters on Thursday.

About 10 Chinese Navy ships crossed the median line and remained in the area from Wednesday night to midday on Thursday, and several Chinese military aircraft briefly crossed the median line on Thursday morning, the person said, who refused to be identified because of his sensitivity of the problem.

Taiwan mobilized the missile system to track the activities of the Chinese Air Force near the median line and the Taiwan Navy ships remained close to the median line to monitor the activities of the Chinese Navy, the person said.