New Delhi:  Monsoon rains continue to hammer several states in north India after 30 people died in floods and landslides on Sunday. In Himachal Pradesh, one of the worst-hit states, at least 24 people have died and multiple incidents of landslides have blocked highways and roads across the states leaving tourists stranded. A flood alert has been issued in parts of Delhi, Haryana, and Uttar Pradesh as the Yamuna and other rivers neared the danger mark. Army is on standby in eight districts of Punjab where situation continues to be grim in areas near the Sutlej River after 2.40 lakh cusecs of water was released on Sunday from the Ropar Headworks dam.