Norway’s populist Progress Party said Monday it was leaving the right-wing coalition government over the repatriation of a suspected Islamic State member and her two children last week.

“We don’t compromise with people who have voluntarily joined terror organisations. That was the last straw,” party leader Siv Jensen told reporters in Oslo.

Without the Progress Party, the coalition, headed by Prime Minister Erna Solberg, loses its majority in parliament, but she will still remain in charge.