NEW : The witness said he feels safe every time he hears the NATO jets overhead , because whenever they 're not present , pro-Gadhafi forces shell the city . 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 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 .