New Delhi, March 20 -- Heavy rains and strong winds lashed Pakistan's largest city overnight, killing at least 15 people and injuring several others as walls and roofs collapsed at multiple locations, emergency services and hospital officials said Thursday.

The storm that began Wednesday continued into the night in Karachi, the capital of southern Sindh province. Authorities advised residents to avoid unnecessary travel.

At least 15 bodies were brought to the city's main hospital. More than two dozen people were injured and treated at hospitals after weather-related incidents, police surgeon Summaiya Tariq and emergency officials said.

The storm also uprooted roadside trees and disrupted traffic, according to rescue officials and polic...