"Sonia Gandhi expressed her deep shock and sorrow on the tragic deaths caused by the stampede in Haridwar. She also conveyed her condolences to the bereaved families and urged the authorities to act immediately in providing relief to the injured," an AICC release said.
At least 16 people, mostly women, were killed and several others injured in the stampede at an ashram in Chandidweep area in Haridwar, official sources said.
The stampede happened when a large number of people tried to enter the Shantikunj Ashram to take part in a 'yagna' as part of the centenary celebrations of the ashram founder Pandit Shreeram Sharma.
Senior administrative and police officials have rushed to the spot.