The Internal Revenue Service will give taxpayer data about immigrants to US authorities conducting criminal investigations, saying it will support President Donald Trump’s pledge to deport people illegally in the US.

A memorandum of understanding was struck Monday between the Treasury Department, which oversees the IRS, and the Department of Homeland Security to share information in response to valid law enforcement requests. The agreement was part of documents filed over a lawsuit by four immigration groups seeking to slow the Trump administration’s mass deportation policies.