Updated

Rescuers found the body of the brother of the United Arab Emirates president Tuesday, four days after his ultralight aircraft crashed into a Moroccan lake, investigators said.

Sheikh Ahmed bin Zayed al Nahayan was the managing director of the Abu Dhabi Investment Authority, considered the world's largest sovereign wealth fund with assets estimated at more than $600 billion dollars.

The pilot, a Spanish national, survived Friday's crash into the artificial lake created by the Sidi Mohamed Ben Abdellah dam and was taken to hospital, where he was in stable condition.

Sheikh Ahmed was the younger brother of Emirati President Sheikh Khalifa bin Zayed al-Nahayan, who is also the ruler of Abu Dhabi.