Suspected militants have detonated three explosives outside the residence of an Egyptian judge who handed down death sentences to supporters of the ousted former president, Mohamed Morsi.

Police officials announced on Sunday that the targeted judge, Mutaz Khafagi, escaped unharmed in the bombing incident outside his apartment near Cairo.

According to the police, security guards captured one suspect that planted the explosives on Sunday.

Another suspect, the police added, fled the scene and remotely set off the bombs after a crowd of onlookers gathered at the apartment building.

"The explosions damaged the facade of the judge's home... and broke the windows of three cars parked outside, including the judge's car," said a police officer as cited in an AFP report.

Meanwhile, a Health Ministry official said one of four wounded in the incident was transferred to a local hospital with a neck injury but other victims only sustained minor wounds.

Khafagi handed down death sentences to 12 men last August after convicting them of killing a police general in the town of Kerdasa near the capital Cairo during a police crackdown on supporters of Morsi, who was ousted in a military coup in July 2013 led by then army chief and current President Abdel Fattah el-Sisi.

The Egyptian government has been cracking down on any opposition since the overthrow of Morsi. Sisi has been widely accused of leading the suppression of Morsi supporters, as hundreds of them have been killed in clashes with Egyptian security forces over the past year.

Rights groups say the army’s crackdown on the supporters of Morsi has led to the deaths of over 1,400 people and the arrest of 22,000 others, including some 200 people who have been sentenced to death in mass trials. Morsi himself was sentenced to 20 years in jail on April 21.