NEW DELHI (AP) — Infections in India hit another grim daily record on Thursday as demand for medical oxygen jumped sevenfold and the government denied reports that it was slow in distributing life-saving supplies from abroad.

Eleven COVID-19 patients died when pressure in an oxygen line dropped suddenly in a government medical college hospital in Chengalpet in southern India on Wednesday night, possibly because of a faulty valve, The Times of India newspaper reported.

Demand for hospital oxygen has increased sevenfold since last month, a government official said, as India scrambles to set up large oxygen plants and transport oxygen.

Health Minister Harsh Vardhan said India has enough liquid oxygen but it’s facing capacity constraints in moving it.

The government meanwhile described as “totally misleading” Indian media reports that it took seven days to come up with a procedure for distributing urgent medical supplies that started arriving on April 25.