Palestinian journalists imposed a daylong news blackout on Tuesday to protest an explosion at the Gaza City offices of the al-Arabiya satellite news station. There was no claim of responsibility for the blast on Monday, and the station did not assign blame. But it did accuse the Hamas-led government, which has been critical of the Arabic-language news channel's coverage, of failing to protect it. Al-Arabiya journalists said they had received dozens of threats, including death threats. Hundreds of journalists and Palestinian officials gathered in the courtyard of the parliament building in Gaza City on Tuesday to protest the attack, which caused considerable damage but no injuries because the offices were empty at the time.