LINCOLN, Neb. (AP) — State officials have issued a health alert for Pawnee Lake just west of Lincoln.

The Nebraska Department of Health and Human Services said Friday that testing of the lake earlier this week detected toxin levels produced by blue-green algal blooms.

Visitors to the lake should avoid full body contact activities such as swimming, wading, skiing and jet skiing. Non-contact activities such as boating, fishing and camping should be safe. People are urged to keep pets out of the water and not allow them to drink lake water.

Skin exposed to the toxin can develop rashes and blisters. Ingesting the toxin can cause headaches, nausea and muscular pain.

Swan Creek Lake in Saline County also remains under a health alert.

WEST POINT, Neb. (AP) — Authorities are investigating an outbreak of salmonella in northeast Nebraska.

Officials say 15 cases in West Point have been confirmed. Six more are suspected.

The source of the outbreak hasn’t been confirmed. Medical experts say salmonella is caused by bacteria that live in the intestinal tracts of humans and animals. It is usually spread by eating contaminated food, including beef, poultry, milk, eggs and vegetables. Thorough cooking kills salmonella.

Symptoms include fever, diarrhea and stomach cramps.

LINCOLN, Neb. (AP) — Police say someone tossed a chunk of concrete at a police cruiser on patrol in Lincoln, cracking its windshield.

Police spokeswoman Angela Sands says the marked cruiser was struck by several objects around 1:30 a.m. Wednesday, but the lone officer inside wasn’t injured. The officer pulled over and took cover until another officer arrived to help.

They soon found a baseball-size chunk of concrete but not the person who tossed it.

It’s not clear whether the cruiser was specifically targeted. Sands says the attack is similar to three other incidents in the area in June.

WINNEBAGO, Neb. (AP) — The Winnebago Tribe of Nebraska is warning patients about possible exposure to serious infections when they were treated at the podiatry clinic at the Winnebago Hospital in Winnebago.

A tribe news release says that, between April 17 and June 2, a podiatry instrument may not have been properly sterilized between patients. That may have raised their risk of exposure to HIV and hepatitis B and C. Indian Health Service officials are not aware of any infected patients.

The release says that, so far, 35 patients have been recommended for testing. Tribal Chairman Frank White says the Centers for Disease Control and Prevention is reviewing the situation.

LINCOLN, Neb. (AP) — A Lincoln man has been given four years of probation for trying to rob a bank branch from a drive-thru lane.

58-year-old James Fitzsimmons was sentenced Wednesday. Court records say he also was fined $2,500. He’d pleaded no contest to a bomb threat, terroristic threats and attempted theft.

Authorities say Fitzsimmons passed a note to a drive-thru teller at a U.S. Bank branch in Lincoln on July 29, 2016. The note said there were gunmen inside the bank as well as bombs that could be remotely detonated.

He left without getting any money. No bomb or gunmen was found in the building.

MADISON, Neb. (AP) — A former Norfolk student teacher accused of changing a student’s grade in exchange for explicit photos of her has been sentenced to six months in jail.

24-year-old Sean Neal, of Wayne, was sentenced Thursday in Madison County Court. Neal had pleaded no contest in June to attempted contributing to the delinquency of a minor, a misdemeanor.

Prosecutors say Neal had raised the grade the same day the 14-year-old Norfolk High School freshman sent the photos. She reported the incident to school officials within a day or two.

OMAHA, Neb. (AP) — The Trump administration has provided a disaster declaration for 18 Nebraska counties.

The declaration announced Tuesday allows federal assistance for storm damage, June 12-17.

The counties are Banner, Box Butte, Butler, Cass, Cuming, Dodge, Douglas, Fillmore, Gage, Jefferson, Morrill, Polk, Sarpy, Saunders, Sheridan, Sioux, Thurston and Wayne.

The counties will be eligible for public assistance for emergency work and repair and replacement of disaster-damaged facilities.

OMAHA, Neb. (AP) — The parents of a student sexually assaulted by an Omaha math teacher have sued the district and some administrators, saying school officials did nothing to stop the teacher.

The federal lawsuit filed last week says the officials didn’t act on reports and suspicions that Brian Robeson was grooming and sexually assaulting a 13-year-old student on and off grounds at Alfonza W. Davis Middle School.

The district and the officials and their lawyers have declined to comment or didn’t return calls.

Robeson pleaded guilty to sexual assault and in October last year was sentenced to 40 years in prison.

The girl’s parents seek undetermined damages for emotional distress, the girl’s ongoing mental health struggles and medical treatment for her physical and emotional injuries.