Hamas’s Gaza chief says his son, Azzam, was ‘seriously wounded’ in deadly Israeli attack on Gaza City.An Israeli air attack on Gaza City has killed one person and wounded the son of Khalil al-Hayya, the head of Hamas’s political bureau and the group’s top negotiator in indirect talks with Israel.The attack took place in Gaza City’s Daraj neighbourhood on Wednesday and wounded at least nine other Palestinians, according to medics.Recommended Stories list of 4 itemsend of listTwo other air raids on the same day killed four others, including a senior colonel in Gaza’s police force.Al-Hayya told Al Jazeera his son, Azzam, was “seriously wounded” in the attack.He identified the man who was killed as Hamza al-Sharbasi.“I say to the occupation and to all who hear us, we are a people with a just cause. Neither the killing of our sons nor the martyrdom of our leaders will intimidate us,” al-Hayya said. “Our sons are the sons of the Palestinian people, and my son and the sons of others are all sons of our people without distinction. Our feelings toward them are one and the same.”Al-Hayya had already lost three sons in previous Israeli attempts on his life – two in Gaza in the 2008 and 2014 rounds of fighting, while the third was killed in an Israeli attempt to kill Hamas leadership in the Qatari capital, Doha, last year.There was no immediate comment from the Israeli military.“Targeting Azz …