Here is the latest Iowa news from The Associated Press

CALAMUS, Iowa (AP) — Authorities say an 18-year-old has been killed after his vehicle collided with a semitrailer in eastern Iowa. The crash happened Monday afternoon on Highway 30 near Calamus. A car traveling east on the highway collided with the semitrailer, which was traveling west. The driver of the smaller vehicle, Connor A. Robinson, of Oceanside, California, was pronounced dead at the scene. The driver of the semitrailer, 57-year-old Anthony M. Zappa, of Forest Lake, Minnesota, was not hurt.

DUBUQUE, Iowa (AP) — Officials in Dubuque say a plugged sanitary sewer pipe caused a sanitary sewer manhole to overflow untreated wastewater into the city’s storm sewer system. The state Department of Natural Resources says the city’s public works department was notified of the sewer back up Monday afternoon. Crews removed the blockage a short time later.

SAC CITY, Iowa (AP) — A judge says a 17-year-old facing vehicular homicide charges in the deaths of two teenagers will be prosecuted as an adult. District Associate Judge Adria Kester says the 17-year-old does not have reasonable prospects of rehabilitation if he remains in juvenile court. The 17-year-old is charged with two counts of vehicular homicide in Sac County Juvenile Court.

DES MOINES, Iowa (AP) — James Taylor will appear at a rally for Democratic Senate candidate Bruce Braley in Des Moines on Saturday. The singer-songwriter will perform at a rally headlined by former President Bill Clinton at the Brenton Skating Plaza. Taylor is famous for hits like “Fire and Rain” and “Shower the People.” Taylor is giving a concert at Wells Fargo Arena in Des Moines on Saturday night.