CARACAS, Venezuela (AP) — Venezuelan courts have ordered 11 student protesters to stand trial, but they have freed more than 150 others arrested with them during raids on their encampments, prosecutors said Sunday.

The statement from prosecutor's office said the 11 face charges including weapons offenses, criminal association and incitement to violate laws, as well as drug violations.

But it said 156 others will be freed, though they will have to report periodically to the courts. And prosecutors asked that 15 be sent for treatment of drug use. Some protesters were freed earlier.

Hundreds of police and troops arrested 243 student protesters during pre-dawn raids Thursday on four encampments of protesters opposed to President Nicolas Maduro's socialist government.

That set off angry clashes in which one police officer was killed, raising the death toll from disturbances that began in February to at least 42.