South African cameraman Adil Bradlow detained in Egypt

Adil Bradlow. (Image: YouTube)

The four staffers are: Al Jazeera correspondent Wayne Hay, SA cameraman Adil Bradlow, and producers Russ Finn and Baher Mohammed.

They have been held since Tuesday. Hay, Bradlow, Finn and Mohammed were in Cairo covering events.

The arrests follow the detainment of Abdullah al-Shami who was performing his duties as an Al Jazeera correspondent when he was arrested after the raid of Rabaa Adawiya on the fourteenth of August.

He was taken along with Mohamed Badr, a cameraman for Al Jazeera Mubasher Misr who has been held for more than one month.

Wayne Hay. (Image: Al Jazeera)

These arrests are part of what Reporters Without Borders has called "growing hostility" towards journalists in Egypt.

Abdullah al-Shami. (Image: Al Jazeera)

There has also been a campaign against Al Jazeera in particular, as the channel's offices were raided last month and security forces seized equipment, which has yet to be returned.

Al Jazeera calls for the Egyptian authorities to release all our staff unconditionally along with their belongings and equipment.