The International Civil Aviation Organization (ICAO), a United Nations agency that defines international operating standards for civil aviation, has confirmed it’s investigating a cybersecurity incident.

In a statement published on Monday, ICAO said it is “actively investigating reports of a potential information security incident allegedly linked to a threat actor known for targeting international organizations.” 

This comes after an individual claimed in a January 5 post on a popular hacking forum to have accessed 42,000 documents from ICAO, including personal information.  

A sample of the allegedly stolen data published on the forum, seen by TechCrunch, includes full names, dates of birth, home and email addresses, phone numbers, and details about education histories and employment. Some of the records appear to include information about ICAO employees.

When reached by TechCrunch, ICAO declined to comment beyond its statement.