The IDF confirmed launching an attack on a target in the northern Strip. The Palestinians said Shigazi and a senior Islamic Jihad member who was visiting him escaped the missile attack on the home unharmed.
Three of those injured in the attack were reportedly in moderate to serious condition.
Despite the ongoing strife with Hamas, the al-Aqsa Brigades is occasionally involved in the launching of mortars and rockets toward Israel, and its gunmen have placed explosive devices along the security fence separating the Strip from Israel and clashed with IDF soldiers operating in the area.
Earlier it was reported that three Palestinians were killed and three were injured in an explosion in a house in the northern Gaza Strip town of Jabalya.
At first, Palestinian sources reported that the Israel Air Force had struck in the area, but the incident later turned out to be a "work accident" apparently caused by the preparation of an explosive device or an explosion of old ammunition.