What killed Blofeld?

What killed Blofeld? During an interrogation scene, as Bond tries to find out what Blofeld knows about the nanobots, Blofeld is killed by Bond. Accidentally, of course. Safin had forced Swann to apply the targetted nanobots to herself, but she bails on the interrogation of Blofeld.

During an interrogation scene, as Bond tries to find out what Blofeld knows about the nanobots, Blofeld is killed by Bond. Accidentally, of course. Safin had forced Swann to apply the targetted nanobots to herself, but she bails on the interrogation of Blofeld.