The mercury dipped to zero degree Celsius in Karnal on Saturday as the cold wave sweeping most parts of Haryana and Punjab for over a week continued unabated.

The minimum temperatures in the two states were several notches below normal.

At zero, Karnal in Haryana was seven degrees below the normal temperature, a Meteorological Department official said.

Among other places in Haryana, Hisar, Ambala and Narnaul shivered at 2.7, 4.6 and 2 degrees Celsius, respectively, up to five degrees below the normal.

Rohtak, Bhiwani and Sirsa recorded minimum temperatures of 3.8, 5.5 and 3.8 degrees Celsius, respectively.

In Punjab, Adampur continued to be the coldest place in the state for the second consecutive day at 0.2 degrees Celsius.

Amritsar, Ludhiana, Patiala, Pathankot, Halwara and Bathinda also braved icy temperatures at 2.2, 1.4, 4.7, 3.1, 2.2 and 2.4 degrees Celsius, respectively.

Chandigarh, the joint capital of Haryana and Punjab, recorded a minimum temperature of 4.6 degrees Celsius.

Fog reduced visibility at several places in the two states.