Three men were found dead in Monufiya, north of Cairo, on Tuesday after they tried to excavate for ancient artifacts.
The province’s security directorate said the well, dug by the three brothers, was inside a garage.
Two of the brothers died while trying to rescue their third brother who had fallen down into the hole.
Reports of individuals independently searching for antiquities at their residences have increased since the 2011 uprising. Egyptian laws criminalize the illegal and unauthorized trade of Egyptian antiquities.
The incident comes a few days after four others were found missing and later dead after searching for possible treasure inside their home in Fayoum.
Edited translation from Al-Masry Al-Youm