NEW : Loud explosions are heard in Tripoli on Sunday . A Misrata doctor says 16 people were killed and 71 wounded there . A doctor says pro - Gadhafi forces extensively shelled Misrata . The doctor says fighter jets started firing on the early morning .
NEW : Loud explosions are heard in Tripoli on Monday . A Misrata doctor says 16 people were killed and 71 wounded Sunday . A witness says pro-Gadhafi forces extensively shelled Misrata . The doctor says NATO jets started firing on Misrata early Monday .