Despite a vicious crackdown by Iran’s authorities, CBS News correspondent Mark Phillips reports that there are more ominous signs Tuesday morning that the unrest is continuing.

Iran’s official news agency says those arrested in the demonstrations, which have now gone on for a week and a half, will be “dealt with in a way that will teach them a lesson.”

According to Iran’s state TV, more than 450 people have been arrested and 10 have died in the post-election violence.