After an ineffective attack by L 10 on Tyneside on 15–16 June the short summer nights discouraged further raids for some months, and the remaining Army Zeppelins were reassigned to the Eastern and Balkan fronts. The Navy resumed raids on Britain in August. On 9–10 August, four Zeppelins were directed against London; none reached its target, and one, L 12, was damaged by ground fire near Dover and came down in the sea off Zeebrugge. Despite eight attacks by RNAS aircraft, the airship was towed into Ostend where it was later dismantled. The four-Zeppelin raid was repeated on 12–13 August; again only one airship, L 10, made landfall, dropping its bombs on Harwich. A third four-Zeppelin raid tried to reach London on 17–18 August; two turned back with mechanical problems, one bombed Ashford, Kent in the belief it was Woolwich, but L 10 became the first Navy airship to reach London. L 10 was also misnavigated, mistaking the reservoirs of the Lea Valley for the Thames, and consequently dropped its bombs on Walthamstow and Leytonstone. 10 people were killed, 48 injured and property damage was estimated at £30,750. Guns were fired at L 10 and a few aircraft took off in pursuit, but the Zeppelin suffered no damage. L 10 was destroyed a little over two weeks later: it was struck by lightning and caught fire off Cuxhaven, and the entire crew was killed.