Flash floods in the Munneru river snapped road connectivity between Vijayawada and Hyderabad as the NH-65 remained below a sheet of water on Friday.
Villagers of Ithavaram and neighbouring habitations in Nandigama mandal, which were marooned in the flash floods, complained that no alert was issued in advance so that they could move to safety.
It is suspected that several upstream tanks might have suffered breaches, resulting in the flash floods.