Abdullah Morsi, who was an outspoken government critic, died at the Oasis hospital in Giza, sources tell Al Jazeera.

The youngest son of late Egyptian President Mohamed Morsi died of an alleged heart attack at a hospital in Cairo, sources told Al Jazeera.

Abdullah Morsi, who was in his mid-twenties, died on Wednesday at the Oasis hospital in Giza in the southwest of the capital, the sources said.

A Morsi family source confirmed his death to Anadolu Agency without giving further details.

Egypt‘s health ministry has yet to comment on his death.

Mohamed Morsi, Egypt’s first democratically elected president, died on June 17 while standing trial for charges that he and legal observers said were politically motivated.

He was deposed in a 2013 military coup carried out by current President Abdel-Fattah el-Sisi following a year in power.

Several local news sites reported the death of Abdullah Morsi, saying there was no criminal suspicion, noting that Morsi’s son had suffered several previous health scares, and was saddened by his father’s death.

Morsi’s second son, Ahmed, said his younger brother, Abdullah, was driving his car and had sudden spasms. He was immediately taken to hospital but doctors were unable to revive him.

“Abdullah died at the hospital after suffering a heart attack,” Anadolu cited Ahmed Morsi as saying.