Egypt is intensifying diplomatic efforts to end military tensions between the Palestinian Islamic Jihad (PIJ) and the Israeli army around Gaza, a senior Palestinian official said on Wednesday. The Egyptian push comes after the PIJ threatened to respond to Israel’s arrest of one of its leaders, Bassam al-Saadi, at his home in Jenin, occupied West Bank, on Monday night. The detention of the official has heightened tensions around Gaza, with roads closed and fears of an all-out war between Israel and the PIJ. The Al-Quds Brigades, the military wing of the PIJ, said its fighters were on a heighten…