According to another tale, Apollo killed them by sending a deer between them; as they tried to kill it with their javelins, they accidentally stabbed each other and died.
ɐkˈoːɹdɪŋ tʊ ɐnˈʌðɚ tˈeɪl, ɐpˈɑːloʊ kˈɪld ðˌɛm baɪ sˈɛndɪŋ ɐ dˈɪɹ bᵻtwˈiːn ðˌɛm; æz ðeɪ tɹˈaɪd tə kˈɪl ɪt wɪð ðɛɹ dʒˈævəlɪnz, ðeɪ ˌæksɪdˈɛntəli stˈæbd ˈiːtʃ ˈʌðɚ ænd dˈaɪd.