Mahmoud Jibril is a senior member of the opposition the National Transitional Council.
He called on rebel fighters and Libyans to show restraint and compassion when dealing with captured Gaddafi loyalists.
"I call on your conscience, responsibility, to come to the fore to prevent you from taking any vengeance in these happy moments, or damaging property, or mistreating foreigners or prisoners. "
Jibril said prisoners were not to be mistreated so they could be held accountable in a just trial for Libyans to find out why we were "mistreated in the past 42 years".
He said Libyans needed to be united in democracy as they were in suffering.
View Jibril's address on Al Jazeera here.
