Loud explosions have rocked the Libyan capital, Tripoli, for a third night as forces loyal to Muammar Gaddafi attempt to stop any new attack from an international military coalition enforcing a no-fly zone over the country. Gunfire and anti-aircraft fire lit up the sky late on Monday in and around the capital, where two large explosions could be heard about 10 minutes apart shortly after 9pm, said Al Jazeera's Anita McNaught, reporting from Tripoli.