Witness says square in Benghazi is full of protesters , but there is little sign of police or military . Tanks surrounded demonstrators in Benghazi , a protester says . 20 reportedly killed since Tuesday , 50 of them Friday . The images followed reports from protesters , witnesses and human rights activists who described brutality by internal security forces , sometimes dressed in plain clothes . Benghazi president condemns the government crackdowns in Libya , Benghazi and Bahrain .
Witness says square in Benghazi is full of protesters , but there is little sign of police or military . Tanks surrounded demonstrators in Benghazi , a protester says . 20 reportedly killed since Tuesday , 50 of them Friday . Benghazi president condemns the government crackdowns in Libya , Benghazi and Bahrain .