At least 10 people who were among several thousand arrested in post-election protests in Venezuela were set free Saturday, as part of a large-scale review of the cases, two human rights groups said.

Ten people have been released “for now” from three prisons in various parts of the country, said Alfredo Romero, director of the Foro Penal legal aid NGO.

Another NGO, the Coalition for Human Rights, confirmed the release of 10 detainees and added that the process had been underway since early in the morning.

Over 2,400 people were arrested during the unrest that followed the reelection of President Nicolas Maduro in July, which the opposition alleged was fraudulent.

Only a handful of countries, including Venezuela ally Russia, have recognized Maduro’s victory.

The unrest left at least 28 dead and nearly 200 people injured, according to prosecutors. The detainees included 164 minors, 69 of whom remain behind bars.

Prosecutors announced on Friday the review of 225 cases after Maduro said a “rectification” was needed in case procedural errors were identified.

“Anyone responsible for criminal actions… will be punished, anyone who has not had such responsibility will be subject to a review,” said Attorney General Tarek William Saab.

The prosecutor’s office also promised to continue reviewing more cases.

– Relatives protesting –

Hundreds of relatives had been protesting to demand the release of their loved ones, saying they had no part in the protests.

Human rights activists allege that the detainees are being subjected to abuse, malnutrition and denied medical care in jail.

On Monday, the detainees’ relatives plan to hold a vigil in front of the prosecutor’s office, demanding that more people be released.

“It’s not 225, it’s more than 2,000 young people unjustly detained!” they said in a call to action.

Saab defended the state’s crackdown on opposition supporters after the disputed July elections.

The opposition, tipped by polls for an easy win, published detailed polling-station-level results that showed its candidate Edmundo Gonzalez Urrutia winning by a landslide.

Opposition protests have largely petered out since September, when Gonzalez Urrutia went into exile in Spain after a warrant was issued for his arrest.