Scuttling warships after false threat reports

Was Admiral Graf Spee the only warship scuttled because its crew was deceived about the enemy threat?

No. Other ships were scuttled when crews wrongly believed capture was imminent, although no examples are named from memory here.

The follow-up asks whether Admiral Graf Spee was unique in being scuttled after a false impression of the enemy threat. The answer recalls other warships being destroyed by their own side because crews believed capture was imminent. No names are supplied from memory, so the passage is not a catalogue of comparable cases. Commanders sometimes make irreversible denial decisions from incomplete or deceptive information. The Graf Spee episode therefore belongs to a wider problem of uncertainty, deception, and self-destruction under perceived capture risk.