Besides the gushing of flood waters, heavy boulders had fallen on tracks at certain places in the Jammu-Udhampur-Mata Vaishno Devi Katra rail section, a senior Northern Railway official said.
As a result, train services to Katra have been cancelled, he said.
Five train services - three between New Delhi and Katra and one each bewtween Jammu and Udhampur, and Anand Vihar and Uddhampur - have been cancelled.
Train services between Pathankot and Katra, Katra and Jammu slated for towmorrow have also been cancelled.