Was Frits gerlich arrested?

After the Nazis seized power on 30 January 1933, Gerlich was arrested March 9, 1933 and held at the Dachau concentration camp, where he died on 30 June 1934 during the Night of the Long Knives. His death was officially announced days after his arrest, and the announcement was published in the international press at the time. He was cremated, ashes given to his wife.