At least eight people were reportedly killed, including Taiwan's top military official, after a helicopter made an emergency landing in northern Taiwan on Thursday morning.

(Photo: CCTV News)

Five survivors were found by the rescue team as of 1:30 p.m. local time, and one of them was trapped in the wreckage. 

Thirteen people were on board the Black Hawk helicopter when the incident happened. The cause of the crash-landing remains unknown. 

Taiwan political leader Tsai Ing-wen, who is seeking re-election, promised to prioritize rescue operations and investigations into the incident and cancelled all campaign activities until Saturday, her campaign office said in a statement.