UNITED NATIONS (AP) — The U.N.’s internal oversight body says in a report on U.N. peace operations that the number of fraud cases it decided to investigate last year increased nearly 80% from 2018, while the number of sexual exploitation and abuse cases rose 40%.

The 2019 report by the Office of Internal Oversight Services, which was circulated Friday, said the highest number of cases it investigated were in the U.N. peacekeeping mission in Central African Republic, followed by the peacekeeping operations in Mali, Congo, Western Sahara and South Sudan.

Of the 241 cases investigated, 77 related to fraud, a 79% increase from the previous year, and 73 cases related to sexual exploitation and abuse, a 40% rise.

In audits of peace operations, the investigative body criticized