A green cab struck two people and their dog as they walked near a busy Interstate 8 East off ramp in Grantville early Sunday morning, San Diego police (SDPD) said.
The incident happened at approximately 5:30 a.m. on the Fairmont Avenue I-8 east off ramp, while it was still dark, police said.
A man, woman and their dog were walking southbound on Fairmont Avenue by the off ramp when a green taxi cab struck them, police said.
The impact of the crash sent the man, 32, flying through the cab's windshield. He suffered a life threatening brain bleed and a broken leg.
The woman, 23, suffered head injuries. Both were taken to the hospital.
The crash killed the pair's dog.
The taxi driver did not suffer any injuries in the crash and called the police. He is cooperating with police, and at this time, he has not been charged or arrested.
The I-8 east off ramp was closed for several hours Sunday morning as police investigated.
No further information is available.