Spain's King Juan Carlos back in hospital for hip surgery April 27, 2012 -- Updated 0816 GMT (1616 HKT) King Juan Carlos is readmitted to a hospital in Madrid for surgery on his hip The 74-year-old monarch injured his hip in a fall while on a private hunting trip in Africa The trip has caused controversy because of its cost and because it included elephant hunting The king had hip replacement surgery earlier this month Madrid (CNN) -- Spain's King Juan Carlos was recovering Friday after being readmitted to a Madrid hospital for surgery on his right hip, the Royal Palace said. An update on the 74-year-old king's condition is expected later in the day, according to the palace. The surgery was performed Thursday at San Jose Hospital to "reduce a dislocation" of the hip, a palace statement said. He underwent hip replacement surgery earlier this month after falling while on a controversial private hunting trip in Botswana. The African trip caused an outcry in Spain and abroad for its expense during the nation's economic crisis and for including the hunting of elephants. Last week, the king made a rare apology over the trip, saying he had made a mistake which would not happen again. Animal rights activists also voiced criticism, as reports emerged that the king was hunting elephants. It was widely published in Spanish media, which said it was taken from the website of an African safari outfitter, and that the photo was later removed from the company's site.