Actress Cameron Diaz has shown her caring side - by rescuing an injured dog she found in her neighbourhood.

The Charlie's Angels star discovered a lone German Shepherd on Saturday afternoon and took it back to her Hollywood home.

Diaz's representative Brad Cafarelli tells People.com, "Cameron and a friend were involved in returning an injured dog to its owner."

And a source adds, "Diaz brought the dog in her house and gave it some food and water. Her assistant posted a 'found German shepherd' sign and (the dog's owner) - Diaz's neighbour who was driving around the area - came across it."

But the star's caring nature didn't stop there.

The source adds that Diaz "made time to visit the vet where the dog was being treated".