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.

Trump says US and Tehran having 'good talks'
Israel to allow international force into Gaza, Israeli official says
Saudi Arabia reaffirms right to defend its security against drone attacks
UK's Burnham welcomes Zelenskyy as first foreign visitor
Philippines' Marcos puts anti-graft campaign at centre of address to Congress
