An independent New York-based nonprofit organisation that promotes press freedom and defends the rights of journalists has raised concerns over the increasing number of assaults on reporters covering anti-government demonstrations in the Middle East.

Even as the sexual assault on CBS correspondent Lara Logan in Egypt sent shock waves acorss the global media industry, an ABC news reporter Miguel Marquez emerged as the latest victim.

The Committee to Protect Journalists, which was alarmed by news that CBS correspondent and CPJ board member Lara Logan was sexually assaulted and beaten in Cairo on Friday, released another statement on the plight of journalists in Libya, Bahrain, Iran, and Yemen.

It's alarming to see Libya, Bahrain, Yemen, and Iran, take a page from Egypt and Tunisia to use violence and censorship to stop coverage of political unrest, said Mohamed Abdel Dayem, CPJ's Middle East and North Africa program coordinator. The international community must speak out against these deliberate acts of media obstruction.

Start the slideshow to go through some of the incidents of assault against journalists in the Middle East: