After an afternoon stroll on the beach in Eze-sur-Mer with Bono, Robert De Niro and three of his children, Brad Pitt arrived at Lenval hospital at 7:30 p.m.

Accompanied by Maddox, Papa Pitt apparently came to stay overnight with Angelina Jolie.

Sources tell E! news that earlier in the day Brad, along with Maddox, Pax and Zahara, spent the afternoon at the beach.

"Bono and Robert De Niro are really good friends, and they hang out in the South of France together every summer," says a source.

"The kids looked like they were having a great time, and none of the locals bothered them or took any notice of them.

"It was a fun afternoon out for all of them."