A second intruder has broken into Keanu Reeves' home - and was found naked.

An unnamed woman entered the 'Matrix' actor's Los Angeles mansion last Tuesday (16.09.14) - the day after he discovered a different mystery female in his house - through an unlocked door and took a shower, before skinny dipping in his pool.

Though Keanu wasn't at home, a cleaning crew working at the property got suspicious of the woman's behaviour and contacted the actor, who called police.

The female was taken away for mental evaluation, as was the woman who had broken in the previous day.

On that occasion, the 'Bill and Ted's Excellent Adventure' star had been at home and discovered the intruder in his library in the early hours of the morning.

Keanu had been sleeping but got up to investigate after hearing sounds there at around 4am.

When he went into the room, he saw a woman in her mid-40s quietly sitting in a chair so calmly approached and began speaking to her.

The woman explained she had come to meet the 50-year-old hunk, and he called emergency services.