All lanes of northbound Interstate 15 reopened about 8:45 a.m. Monday after three hours of delays near the Charleston Boulevard exit.
Nevada Highway Patrol responded to two separate crashes involving motorcycles on I-15 near Charleston about 5:45 a.m., said trooper Jeremie Elliott, which resulted in lane closures for northbound I-15.
One person sustained life-threatening injuries and was taken to University Medical Center, Elliott said.
By 8:45 a.m., all lanes were reopened.
Contact reporter Annalise Porter at email@example.com.