NEW : Moammar Gadhafi says the rebels are losing , insists '' we will not leave '' Tripoli . Whatever his next move , international pressure on Gadhafi appears to be growing . Saif Gadhafi slams the rebels ' `` lying campaign , '' vows their end is near . A rebel official says that the `` coordinated '' Christian operation is `` going easily '' Heavy clashes broke out morning in a Tripoli neighborhood , a resident says .
NEW : Moammar Gadhafi says the rebels are losing , insists '' we will not leave '' Tripoli . Saif Gadhafi slams the rebels ' `` lying campaign , '' vows their end is near . A rebel official says that the `` coordinated '' Christian operation is `` going easily '' Heavy clashes broke out morning in a Tripoli neighborhood , a resident says .