Short-lived neutron-rich nuclei including93 Br, 93 Kr and 94 Kr were produced in proton-induced fission of 238 U at the HRIBF in Oak Ridge. Their beta decay was studied by means of a high resolution on-line mass separator and beta-gamma spectroscopy methods. The half-life of T 1/2 = 152(8) ms and β-delayed branching ratio of Pn = 53