 On 21 October 1959 he carried out one of his most notorious acts, flying a twin-engined bomber (variously reported as a B-25 or B-26) over Havana while dropping anti-communist leaflets, along with his brother Marcos Diaz Lanz.Pedro Diaz Lanz piloted and Marcos Diaz Lanz threw the leaflets down from an open bomb hatch.The unsuccessful gunfire from armed forces on the ground caused injuries and deaths, leading to unsubstantiated reports of bombs being dropped from the aircraft.