Attempts to evacuate casualties by helicopter were repeatedly driven off by 50-caliber machine guns, until these were suppressed by F-4 Phantoms using cluster munitions.
ɐtˈɛmpts tʊ ɪvˈækjuːˌeɪt kˈæʒuːəlɾiz baɪ hˈɛlɪkˌɑːptɚ wɜː ɹᵻpˈiːɾᵻdli dɹˈɪvən ˈɔf baɪ fˈɪftikˈælɪbɚ məʃˈiːn ɡˈʌnz, ʌntˈɪl ðiːz wɜː səpɹˈɛst baɪ ˈɛf fˈoːɹ fˈæntəmz jˈuːzɪŋ klˈʌstɚ mjuːnˈɪʃənz.