Israeli police on Monday detained the Jerusalem bureau chief of the Arab satellite station Al-Jazeera for the second time in two days, the journalist told Israel Radio as he was being taken into custody for questioning.
Walid Al Omari was first arrested late Sunday night in the northern Israeli city of Haifa. He was released several hours later.
Police spokesman Micky Rosenfeld said Al Omari, his cameraman, and an assistant were questioned about footage they had taken after dozens of Hezbollah rockets landed on Haifa, killing eight Israelis in the deadliest ever Hezbollah attack on Israel.
Israeli authorities and local media have accused the Qatar-based satellite station of showing sensitive security locations that could be used by Hezbollah to pinpoint targets for an attack.
Al-Jazeera has denied the allegations.