Journalists covering the revolt against President Hosni Mubarak of Egypt have found themselves the targets of widespread anger and suspicion in an apparently coordinated campaign that is intended to stifle the flow of news that could further undermine the government.

No news organization seemed exempt from the rage, which escalated as the week wore on. Whether from Western or Arab media, television networks or wire services, newspapers or photo syndicates, journalists were chased through the streets and had their equipment stolen or smashed. Some were beaten so badly that they required hospital treatment.

ABC News reported that one of its crews was carjacked on Thursday and threatened with beheading. A Reuters journalist said a “gang of thugs” had stormed the news service’s office and started smashing windows. And four journalists from The Washington Post were detained by forces that they suspected were from the Interior Ministry. All four were released by early Friday. But two of them, the paper’s Cairo bureau chief and a photographer, had been ordered not to leave a local hotel.

“It appears that journalists are being targeted by the Egyptian authorities in a deliberate campaign of intimidation aimed at quashing honest, independent reporting of a transformational event,” said The Post’s foreign editor, Douglas Jehl.