WASHINGTON (Diya TV)  — President Trump spoke to Prime Minister Modi over the weekend about how the two nations would combat the coronavirus, with a focus on ensuring the supply chain for pharmaceuticals and medical goods continues. But at a press conference, when informed India had banned the export of the drug hydroxychloroquine “without any exceptions,” Trump threatened retaliation. Hydroxychloroquine is typically used to treat malaria, but some COVID-19 patients have found it helpful. And the President has been touting it during his press conferences, without a clinical trial proving if it is indeed effective. India provides nearly half of America’s supply of the medicine. It is not clear whether India’s ban would apply to orders already placed.

Prime Minister Modi called on his nation to unite in the battle against COVID-19 by lighting diyas for 9 minutes at 9 pm Sunday night. Millions of people around India took part, which is now entering its third week of being mandated to stay at home to stop the spread of the virus.

Ravi Kapur contributed to this report.