Mexico City ? The Mexican clinic where Coretta Scott King died has been closed, U.S. Embassy officials said Friday.

Mexican officials weren’t immediately available to explain why the clinic was shut. But Judith Bryan, a spokeswoman for the U.S. Embassy in Mexico City, said the U.S. consulate in Tijuana was helping patients find new facilities.

The consulate’s spokeswoman, Liza Davis, said 20 American patients were at the clinic when it was closed Thursday.

King traveled last week to the beachside Santa Monica Health Institute in the Mexican resort of Rosarito, 15 miles south of San Diego. She was seeking treatment for advanced-stage ovarian cancer and a stroke she suffered several months ago.

King’s death raised questions about the safety of alternative medical clinics across Mexico, many of which aren’t closely regulated.