As "Defence" sank and "Warspite" circled, at about 18:19, Hipper moved within range of Hood's 3rd Battlecruiser Squadron, but was still also within range of Beatty's ships. At first, visibility favoured the British: hit "Derfflinger" three times and "Seydlitz" once, while "Lützow" quickly took 10 hits from "Lion", and "Invincible", including two below-waterline hits forward by "Invincible" that would ultimately doom Hipper's flagship. But at 18:30, "Invincible" abruptly appeared as a clear target before "Lützow" and "Derfflinger". The two German ships then fired three salvoes each at "Invincible", and sank her in 90 seconds. A shell from the third salvo struck "Invincible"s Q-turret amidships, detonating the magazines below and causing her to blow up and sink. All but six of her crew of 1,032 officers and men, including Rear-Admiral Hood, were killed. Of the remaining British battlecruisers, only "Princess Royal" received heavy-calibre hits at this time (two by the battleship "Markgraf"). "Lützow", flooding forward and unable to communicate by radio, was now out of action and began to attempt to withdraw; therefore Hipper left his flagship and transferred to the torpedo boat , hoping to board one of the other battlecruisers later.