A partial lockdown was observed in Karachi on Saturday, a day after the Government of Sindh had ordered restrictions to be imposed across the city until August 8 to curb the surge of Covid-19 cases, mainly due to the highly transmissible Delta variant.Police officials were seen erecting barricades and setting up checkpoints in different parts of Karachi. Passenger buses were also intercepted, while the traffic situation across the city was disturbed due to the temporary checkpoints set up by...