Manhole blast figures revealed

PUBLISHED : Thursday, 11 December, 2008, 12:00am
UPDATED : Thursday, 11 December, 2008, 12:00am

One worker was killed and seven people injured in six manhole explosions in the past five years, the Transport and Housing Bureau said. In a recent study the Highways Department recommended measures to reduce the risk of explosions, including sealing up ducts leading to manholes and improving ventilation.