Madonna Visits Haiti To See Sean Penn’s Aid Work

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Madonna arrives to the opening of Hard Candy Fitness on October 17, 2013 in Berlin, Germany.

Madonna is in Haiti to visit humanitarian projects that ex-husband Sean Penn has been overseeing since the Caribbean nation's devastating earthquake in 2010, the actor said Monday.

Penn said in a brief phone call to The Associated Press that he had invited Madonna, with whom he has "maintained a great friendship over the years," to visit several times and that she had come with her son Rocco. He said they arrived a "couple of days" ago, and he wasn't sure when she would leave.

Madonna's been busy posting photos on Instagram. One shows her posing with others at a new hospital built by public health pioneer Dr. Paul Farmer in the central part of the country. The caption: "Revolution of Love in Haiti." Another picture shows a view of the mountains at dusk. The caption: "Sunset in Haiti. This is Heaven!"

Penn has served as an ambassador-at-large for Haiti since early 2012. He received the recognition for his work as head of a humanitarian group he co-founded in the aftermath of the earthquake, the J/P Haitian Relief Organization. The group has focused on housing and relocating thousands of people from a golf course that was among hundreds of impromptu settlements that sprang up after the quake.

His group recently sponsored five Haitian runners to participate in the New York marathon.