Karachi: Karachi received moderate rain on Friday, turning weather a bit cooler. Rains were received in all parts of the city. Some isolated areas got thundershowers, accumulating rainwater on streets in low-lying areas. Due to rains traffic jams were witnessed on main roads, while many bikers were injured as their two-wheelers skidded on slippery roads. Supply of electricity was affected in many areas of the city during and after the rains.