Putin calls protests demanding Navalny's release illegal and dangerous

Police detained more than 3,700 people and used force to break up rallies across Russia on Saturday as tens of thousands of protesters ignored extreme cold and police warnings to demand Navalny be freed from jail where he is serving out a 30-day stint for alleged parole violations he denies.

Putin, who avoids mentioning Navalny by name, told students on Monday that nobody should use illegal protest action to further their own political interests.

"Everyone has the right to express their point of view within the framework provided by the law. Anything outside the law is not just counter-productive, but dangerous," said Putin.