Indian authorities have ordered a probe into the stampede at the Maha Kumbh Mela Hindu festival that killed dozens of devotees on Wednesday as millions gathered for a "holy dip" in sacred river waters as part of the six-week event,

The Uttar Pradesh government has ordered a judicial probe into the deaths of at least 30 people in stampedes at India’s Kumbh Mela festival, where millions of Hindu devotees gathered for a ritual bath at the confluence of three sacred rivers.

Millions of Hindus are gathering in a northern Indian city for the Maha Kumbh festival, the world’s largest religious congregation.