A lightning strike at Hamilton’s water treatment plant has affected water supply in parts of the city.

The lightning strike happened about midnight, damaging computers and alarm systems at the Peacockes Rd plant, which provides all of the city’s fresh water supply.

City Waters manager Tim Harty said this had affected water to the city and some residents were experiencing low pressure, and in extreme cases, a total loss of water supply. Residents in Hillcrest and Flagstaff areas were particularly affected.

“We are currently bringing the plant back on line, but having lost all power and communication, this takes some time,” said Mr Harty.

Council water engineers were assessing the damage, and were checking reservoirs and pump stations. It was hoped supplies will be restored later this morning.

Damaged alarm systems meant council staff were locked out, and had to break in to gain access this morning.

NZPA