LOS ANGELES — A Los Angeles nun who took a vow of poverty has agreed to plea guilty to federal charges for stealing more than $800,000 to pay for a gambling habit, prosecutors announced Tuesday.

Mary Margaret Kreuper, 79, of Los Angeles was charged Tuesday with one count of wire fraud and one count of money laundering, the U.S. attorney’s office said.

Prosecutors said that in a plea agreement also filed Tuesday, the now-retired nun acknowledged that over a decade ending in 2018, she embezzled about $835,000 in donations, tuition and fee money from St. James Catholic School in the LA suburb of Torrance.

Kreuper, who was the school principal for 28 years, “controlled accounts at a credit union, including a savings account for the school and one established to pay the living expenses of the nuns employed by the school,” the U.S. attorney’s office said.

In her plea agreement, Kreuper acknowledged diverting money to pay for personal expenses that included credit card charges and “large gambling expenses incurred at casinos,” the U.S. attorney’s office said.

Kreuper could face up to 40 years in federal prison.