London, Oct 31 (ANI): Madonna made a rather 'clean' faux pas when she was pictured waving with a bottle of hand sanitiser at orphans in Malawi.

The ill-timed photograph was taken as the pop star left the Home of Hope orphanage in Mchinji, where her adopted son David, four, used to live.

The Pop Queen, 51, has adopted two children from the impoverished southern African country and runs a non-profit organisation Raising Malawi to help vulnerable children, reports Sky News.

The singer has been visiting Malawi with David and her other children Lourdes, Rocco and Mercy, who was adopted from the country earlier this year.

The kids joined their mother earlier this week on the tour of the orphanage, where Raising Malawi has built several new buildings. (ANI)