An explosion was heard on MA Jinnah Road near Sea Breeze in Karachi.
Police arrived the scene.
According to initial media reports, the explosion occurred due to a tire burst and the clouds of smoke were see due to the burning of tyres and calcite (choona) near it.
The incident occurred at the main road from where the Chehlum procession is expected to pass after Namaz-e-Zohrain.
No lose of life and property reported.