The first raid of 1917 took place on 16–17 March: five high-altitude Zeppelins encountered very strong winds, and none reached their targets. On the return flight L 39 suffered an engine failure and, blown over French-held territory, was brought down in flames by ground fire. The lack of success was repeated on 23–24 May, when six Zeppelins set out to bomb London but were frustrated by a combination of high winds and thick cloud. A few bombs were dropped on Suffolk, killing one person and causing £599 damage.