Canada’s Immigration Department is sending tens of thousands of refugee claimants letters that they may not be eligible for asylum — and is telling some of them that they should leave immediately.

The move comes after Ottawa passed a law last month that tightened how and when claimants can apply.

“These are not deportation letters,” Immigration, Refugees and Citizenship Canada (IRCC) told CBC News in a statement confirming that the letters have started going out to some 30,000 applicants.

“Procedural fairness letters are routinely used across many programs to give applicants an opportunity to provide additional information before a decision is made.”