William Browder, a US-born Britain-based financier, leaves the anti-graft prosecutor's office in Madrid, Wednesday, May 30, 2018. Browder who has spearheaded a United States law targeting Russian officials accused Moscow of provoking his brief detention on Wednesday in Madrid by Spanish authorities. Francisco Seco / AP
William Browder, a US-born Britain-based financier, leaves the anti-graft prosecutor's office in Madrid, Wednesday, May 30, 2018. Browder who has spearheaded a United States law targeting Russian offiShow more

Russia critic Browder briefly detained in Spain