DES MOINES, Iowa (AP) — The Iowa Senate, after working all night and into Thursday morning to finish the 2014 legislative session, must return later today after a dispute developed involving subpoena powers. Senate Democrats intend to pass a resolution granting subpoena power to the Senate oversight committee, but Republicans are resisting. Senate Majority Leader Mike Gronstal adjourned the session until 8 a.m. Friday, when a vote will be held and the session adjourned.

SIOUX CITY, Iowa (AP) — Sioux City has submitted data to Iowa transportation officials in support of traffic cameras on state roads. Police Chief Doug Young says in a report submitted Wednesday to the state Department of Transportation that the cameras should remain in use because they increase driving safety. The Sioux City Journal reports municipalities were required to submit data to state officials by Thursday.

BURLINGTON, Iowa (AP) — Authorities say four 13-year-old students in southeast Iowa’s Burlington have been charged after their scheme to bake marijuana-laced cookies in a home economics class was discovered. The Hawk Eye newspaper says the four were arrested and released Wednesday. Burlington police Lieutenant Jeff Klein says the four attended Edward Stone Middle School.

BURLINGTON, Iowa (AP) — A Chicago veterinarian who specializes in birds has made one of his biannual visits to Burlington. The Burlington Hawk Eye reports Scott McDonald was booked solid Wednesday as he visited Horse and Hound, an animal specialty store. He saw about 60 birds within 11 hours.