A Southwest Airlines flight attendant was detained by U.S. Immigration and Customs Enforcement (ICE) while on duty, according to the union representing the airline’s flight attendants. The Transport Workers Union Local 556, which represents more than 21,000 Southwest flight attendants, confirmed the detention in a social media statement but did not provide details about the timing, location, or circumstances.

The union emphasized its commitment to supporting the detained member, affirming that every member deserves to be treated with dignity and respect. It also said it is working closely with the flight attendant’s family, an attorney retained by the member, and its own legal counsel to understand the situation and offer appropriate assistance.

“TWU Local 556 will continue to monitor the situation closely and remain engaged as we learn more,” the union stated. It also expressed appreciation for the support and concern from its members and expressed hope for a swift resolution.

Attempts to obtain further clarification from ICE yielded limited information. A spokesperson for ICE, Sarah Loicano, told reporters that the agency was unable to confirm the detention by employer, noting it is “almost impossible” to identify detainees by the company for which they work. However, ICE said it is continuing to review the inquiry.

Southwest Airlines, headquartered at Dallas Love Field—which serves as a primary hub for the carrier—did not respond to requests for comment by the time of publication.

The details surrounding the detention remain unclear, including the flight attendant’s identity, the specific circumstances of the detention, and whether it occurred at the airport or elsewhere. The union has pledged ongoing communication and legal support as the situation develops.