But the government kept police back from the demonstrations after the violence of recent days.
"Everything related to the detention, beatings, robberies and abuses by the police we're going to document and take to the global human rights organizations", Cuevas said.
Some students said they had been beaten and tortured by police while in custody. President Daniel Ortega has since scrapped the unpopular welfare plan, but broader anti-government protests have continued with violence against students and journalists serving as a flashpoint for public anger.
Rights groups say dozens have died in protests and looting triggered by changes to the social security system.
Imran Khan's third marriage hangs in the balance, reports Pakistan media
The Times of Islamabad reported that the reappearance of Mr Khan's dogs at his farmhouse gave "credence to the rumored dispute". Maneka had ensured the dogs remained out of their palatial house in Islamabad as they "disturbed" her religious activities.
Strange Brigade - Story Trailer
Pre-orders are now live for Strange Brigade , and like most games these days, they come in three distinct flavours. This pack includes the Wilkers & White P19 pistol, Stoudenmire 960 submachine gun and the Gehrig-Delgane S1 rifle.
Ukraine ranks 101st in 2018 World Press Freedom Index
The Paris-based Reporters Without Borders on Wednesday released its 2018 World Press Freedom Index , its annual report. Ranking one place behind Taiwan, South Korea jumped 20 places to 43rd, the Index's second-biggest rise.
In a televised meeting on Sunday evening, Ortega cancelled the reforms, but tens of thousands of people marched in Managua on Monday, with many calling for the resignation of their 72-year-old president.
Voices from around Nicaragua and around the world have criticized the government reaction to the protesters.
The former Sandinista guerrilla is on his third consecutive term and has been accused of nepotism - his wife Rosario Murillo is the vice president - and for undermining democratic institutions to tighten his grip on power. "We are particularly concerned that a number of these deaths could be defined as unjustified killings", said Office spokeswoman Elizabeth Throssell, who asked the Nicaraguan authorities for a quick, thorough, independent and transparent investigation of these deaths.
"The repugnant political violence by police and pro-government thugs against the people of Nicaragua, particularly university students, has shocked the democratic worldwide community", a White House statement said.