An immigration raid on a Georgia electric vehicle battery plant run by two South Korean firms has rattled Seoul, coming less than two weeks after President Lee Jae Myung’s White House meeting with U.S. President Donald Trump where Korean companies pledged to invest hundreds of billions in the U.S.

Korean officials worked over the weekend to secure the release of 300 of its citizens detained at a construction site for a Hyundai Motor-LG Energy Solution joint venture, Lee’s chief of staff, Kang Hoon-sik, said during a senior-level meeting between the ruling Democratic Party and the government.

The Korean workers may be able to board a chartered flight around Wednesday to return home, Yonhap News Agency reported, citing comments from Consul General Cho Ki-joong at a Georgia detention center where the workers are being held.