KARACHI: After heavy rainfall Karachi now facing situation of urban flooding, ARY News reported on Tuesday.<br /><br />The military troops have reached to the assistance of civil administration in relief work in the port city.<br /><br />A flow of floodwater gushing out from Thado Dam in Gadap has reached to M-9 highway and a track of the motorway from Karachi to Hyderabad was completely closed due to flash floods.