in november 1941 lange was involved in the planning and carrying out the murder of 24,000 latvian jews from the riga ghetto which occurred on 30 november and 8 december 1941. this crime has come to be known as the rumbula massacre. in addition to the latvian jews, another 1,000 jews from germany were also murdered. they had been brought to latvia on the first train of deportees, which arrived on 29 november 1941. following the 29 november train, more rail transports of jews began arriving in riga from germany, starting on 3 december 1941. the jews on the first few transports were not immediately housed in the ghetto, but were left at jungfernhof concentration camp.