Hayek breast-fed African baby

Rex Features

Salma Hayek has revealed that she volunteered to breast-feed an African baby during a recent trip to Sierra Leone.

The 42-year-old actress, who was nursing her own daughter at the time, offered to help when the baby's mother stopped producing milk, reports Bang.

"The baby was perfectly healthy, but the mother didn't have milk. He was very hungry.

"I was weaning my daughter Valentina, but I still had a lot of milk that I was pumping, so I breast-fed the baby. You should have seen his eyes. When he felt the nourishment, he immediately stopped crying," she said.

It was recently reported that the From Dusk Til Dawn star will be making a guest appearance on the sitcom 30 Rock after a personal phone call from show creator Tina Fey.