The Sudanese government has come under fire from the Arabic Network for Human Rights Information (ANHRI) for its crackdown on peaceful protesters over the last week.
"There should be dialogue with the opposition and respect for the human rights of its citizens to express themselves and protest without harassment," a statement from the rights group said on Thursday.
“We have seen the Sudanese authorities conduct mass arrests and use force to disperse peaceful protests. If the government continues in this way, there will be a catastrophe … as happened in other Arab Spring revolutions."
Sudan has been rocked by five days of protests against a possible rise in fuel prices, with some demonstrators demanding the fall of the regime. Police and security forces have used tear gas and batons to disperse the protests.
The network also asked for the lifting of what it called a "media siege" on the protests, as well as for increased pressure on the Khartoum government to respect human rights.
"The Sudanese intifada cannot be another revolution that is buried in silence," ANHRI added.
An AFP reporter was detained for 12 hours on Wednesday while covering protests in the Sudanese capital.
On Thursday morning, Egyptian journalist Salma El-Wardany was detained, along with blogger Maha El-Senussi, while reporting on protests at the University of Khartoum.
El-Wardany and El-Senussi were arrested on their way to meet Naglaa Ahmed, an activist from the 'We Are Fed Up' opposition movement.