MEXICO CITY, ⁠Feb ⁠10 (Reuters) - ⁠Three people were ​killed ‌and another six ‌were ⁠injured ⁠after a Pemex pipeline ​exploded on Tuesday ​in the Isthmus ⁠of Tehuantepec ⁠region ⁠of Mexico's ​Oaxaca ...