Two subway trains in Hong Kong have collided while testing a new signal system.
According to reports, the incident occurred between the Central and Admiralty stations before the service opened to the public early Monday.
No passengers were on board, but the drivers were taken to hospital.
Authorities have now launched an investigation into the incident.

Zohran Mamdani wins NYC mayoral race, capping meteoric rise
Death toll rises to 11 in fire at Bosnian retirement home
Driver rams into pedestrians in western France, nine injured
Philippines begins cleanup after Typhoon Kalmaegi leaves at least 85 dead
