Fighters loyal to Libya's overthrown leader Muammar Gaddafi took control of a town south-east of the capital on Monday, flying their green flags in defiance of the country's fragile new government. The fightback by Gaddafi supporters defeated in Libya's civil war, though unlikely to spread elsewhere, added to the problems besetting a government which in the past week has been reeling from one crisis to another. Gaddafi himself was captured and killed in October after weeks on the run.