Two_CRD men_NN2 were_VBD killed_VVN in_PRP Texas_NP0 after_PRP a_AT0 Tesla_NN1 they_PNP were_VBD in_PRP crashed_VVD on_PRP Saturday_NP0 and_CJC caught_VVD fire_NN1 with_PRP neither_DT0 of_PRF the_AT0 men_NN2 behind_PRP the_AT0 wheel_NN1 ,_PUN the_AT0 authorities_NN2 said_VVD ._SENT Mark_NP0 Herman_NP0 ,_PUN the_AT0 Harris_NP0 County_NN1 Precinct_NN1 4_CRD constable_NN1 ,_PUN said_VVD that_CJT physical_AJ0 evidence_NN1 from_PRP the_AT0 scene_NN1 and_CJC interviews_NN2 with_PRP witnesses_NN2 led_VVN officials_NN2 "_PUQ to_TO0 believe_VVI no_AT0 one_PNI was_VBD driving_VVG the_AT0 vehicle_NN1 at_PRP the_AT0 time_NN1 of_PRF the_AT0 crash_NN1 ._SENT "_PUQ The_AT0 vehicle_NN1 ,_PUN a_AT0 2019_CRD Model_NN1 S_ZZ0 ,_PUN was_VBD going_VVG at_PRP a_AT0 "_PUQ high_AJ0 rate_NN1 of_PRF speed_NN1 "_PUQ around_PRP a_AT0 curve_NN1 at_PRP 11_CRD :_PUN 25_CRD p.m._AV0 local_AJ0 time_NN1 when_CJS it_PNP went_VVD off_AVP the_AT0 road_NN1 about_PRP 100_CRD feet_NN2 and_CJC hit_VVD a_AT0 tree_NN1 ,_PUN Constable_NP0 Herman_NP0 said_VVD ._SENT The_AT0 crash_NN1 occurred_VVN in_PRP a_AT0 residential_AJ0 area_NN1 in_PRP the_AT0 Woodlands_NP0 ,_PUN an_AT0 area_NN1 about_PRP 30_CRD miles_NN2 north_NN1 of_PRF Houston_NP0 ._SENT The_AT0 men_NN2 were_VBD 59_CRD and_CJC 69_CRD years_NN2 old_AJ0 ._SENT One_PNI was_VBD in_PRP the_AT0 front_AJ0 passenger_NN1 seat_NN1 and_CJC one_PNI in_PRP the_AT0 rear_AJ0 seat_NN1 ,_PUN Constable_NP0 Herman_NP0 said_VVD ._SENT He_PNP said_VVD that_CJT minutes_NN2 before_PRP the_AT0 crash_NN1 ,_PUN the_AT0 men_NN2 's_POS wives_NN2 watched_VVD them_PNP leave_VVI in_PRP the_AT0 Tesla_NN1 after_CJS they_PNP said_VVD they_PNP wanted_VVD to_TO0 go_VVI for_PRP a_AT0 drive_NN1 and_CJC were_VBD talking_VVG about_PRP the_AT0 vehicle_NN1 's_POS Autopilot_NP0 feature_NN1 ._SENT The_AT0 National_AJ0 Highway_NN1 Traffic_NN1 Safety_NN1 Administration_NN1 said_VVD last_ORD month_NN1 that_CJT it_PNP was_VBD investigating_VVG nearly_AV0 two_CRD dozen_CRD crashes_NN2 involving_VVG Teslas_NN2 that_CJT either_AV0 were_VBD using_VVG Autopilot_NP0 or_CJC might_VM0 have_VHI been_VBN using_VVG it_PNP ._SENT The_AT0 causes_NN2 of_PRF death_NN1 were_VBD unclear_AJ0 on_PRP Sunday_NP0 ._SENT Positive_AJ0 identification_NN1 had_VHD not_XX0 yet_AV0 been_VBN made_VVN because_CJS of_PRF the_AT0 duration_NN1 of_PRF the_AT0 fire_NN1 ,_PUN Constable_NP0 Herman_NP0 said_VVD ._SENT "_PUQ It_PNP took_VVD four_CRD hours_NN2 to_TO0 put_VVI out_AVP a_AT0 fire_NN1 that_CJT normally_AV0 would_VM0 have_VHI taken_VVN a_AT0 matter_NN1 of_PRF minutes_NN2 ,_PUN "_PUQ Constable_NP0 Herman_NP0 said_VVD ,_PUN adding_VVG that_CJT it_PNP took_VVD more_AV0 than_CJS 30_CRD ,_PUN 000_CRD gallons_NN2 of_PRF water_NN1 to_TO0 extinguish_VVI the_AT0 fire_NN1 ._SENT Regulators_NN2 have_VHB raised_VVN concerns_NN2 about_PRP the_AT0 batteries_NN2 used_VVN in_PRP electric_AJ0 vehicles_NN2 ._SENT The_AT0 National_AJ0 Transportation_NN1 Safety_NN1 Board_NN1 warned_VVN in_PRP a_AT0 2020_CRD report_NN1 that_CJT the_AT0 batteries_NN2 can_VM0 pose_VVI safety_NN1 risks_NN2 to_PRP emergency_NN1 responders_NN2 ._SENT Mitchell_NP0 Weston_NP0 ,_PUN chief_AJ0 investigator_NN1 at_PRP the_AT0 Harris_NP0 County_NN1 Fire_NN1 Marshal_NP0 's_POS Office_NN1 ,_PUN said_VVD that_CJT while_CJS the_AT0 batteries_NN2 are_VBB "_PUQ generally_AV0 safe_AJ0 ,_PUN "_PUQ impacts_NN2 at_PRP high_AJ0 speeds_NN2 can_VM0 result_VVI in_PRP "_PUQ thermal_AJ0 runaway_NN1 ,_PUN "_PUQ which_DTQ causes_VVZ an_AT0 "_PUQ uncontrolled_AJ0 contact_NN1 "_PUQ between_PRP different_AJ0 materials_NN2 in_PRP the_AT0 batteries_NN2 ._SENT Thermal_AJ0 runaway_NN1 can_VM0 lead_VVI to_PRP fires_NN2 ,_PUN as_CJS well_AV0 as_CJS "_PUQ battery_NN1 reignition_NN1 ,_PUN "_PUQ even_AV0 after_PRP an_AT0 initial_AJ0 fire_NN1 is_VBZ put_VVN out_AVP ,_PUN the_AT0 safety_NN1 board_NN1 warned_VVD in_PRP its_DPS report_NN1 ._SENT Mitsubishi_NP0 Electric_NN1 warns_VVZ that_CJT "_PUQ thermal_AJ0 runaway_NN1 can_VM0 lead_VVI to_PRP catastrophic_AJ0 results_NN2 ,_PUN including_PRP fire_NN1 ,_PUN explosion_NN1 ,_PUN sudden_AJ0 system_NN1 failure_NN1 ,_PUN costly_AJ0 damage_NN1 to_PRP equipment_NN1 ,_PUN and_CJC possibly_AV0 personal_AJ0 injury_NN1 ._SENT "_PUQ The_AT0 fire_NN1 marshal_NN1 's_POS office_NN1 was_VBD investigating_VVG the_AT0 fire_NN1 in_PRP the_AT0 crash_NN1 ,_PUN a_AT0 spokeswoman_NN1 said_VVD ._SENT 
