Cool joint goes to pot

McDonald's has launched an investigation after 16-year-old Valerie Valle found a partially smoked marijuana joint in her frozen yoghurt parfait.

Valerie, of Round Rock, Texas, and seven other family members were returning home from a holiday on South Padre Island, Texas, when they stopped for breakfast.

Valerie said that when she took it back, she was offered another one. "I said no thanks, and had my money back instead," she said.