(CNN) Three people were killed and one was injured Friday in shootings on Interstate 45 in two Southeast Texas counties — incidents believed to involve motorcycle gangs, authorities said.
The incidents happened in Montgomery and Walker counties, north of Houston.
At 12:18 local time, Texas Department of Public Safety Troopers, the Walker County Sheriff’s Office and Huntsville Police responded to a report of a shooting at the 114 mile-marker on northbound I-45, Huntsville police said in a statement. Facebook post.
Authorities found three men suffering from gunshot wounds, and emergency medical services arrived and “began life-saving efforts,” police said. Two of the men, aged 43 and 69, were pronounced dead at the scene. An injured 61-year-old man was sent to Hermann Hospital in Houston, according to the post.
“The three victims were male, all riding motorcycles, and all wearing clothing and insignia that indicated they were part of an outlaw motorcycle gang,” Huntsville police said, adding that the incident and a shooting that took place in “Montgomery County are related.”
Huntsville police said they are cooperating with the Texas Rangers in their investigation.
The Montgomery County Sheriff’s Office said earlier in the day that it responded to a shooting incident in which one person died along I-45.
A 32-year-old man was shot Friday just after 11 a.m. on I-45 in Spring, and was later taken to a local hospital where he died from his injuries, the sheriff’s office said.
“The individuals involved are all believed to be affiliated with motorcycle gangs,” the agency said.
Another man may also have been shot in that jurisdiction with non-life-threatening injuries, Montgomery County sheriff’s spokesman Steven Squier told CNN affiliate KHOU.
“We are also aware of another incident in Walker County involving fatalities and a critically injured individual that may be related,” Squier said. The investigation is ongoing, he said.
CNN has reached out to the Montgomery County Sheriff’s Office for more details.