NATIONAL BRIEFING / WISCONSIN

Milwaukee Mayor Tom Barrett remained hospitalized after being attacked with a metal pipe when he tried to assist a screaming grandmother near the Wisconsin State Fair. Barrett, 55, was in stable condition with a fractured hand and other wounds to his head and hand, officials said.

The mayor had gone to the fair outside Milwaukee on Saturday night with his sister, two daughters and a niece. As they walked to Barrett’s car afterward, they heard a woman screaming for someone to call 911, police said. Police said the woman was trying to protect her 1-year-old granddaughter from a 20-year-old man, an assault authorities characterized as a domestic dispute.

“The mayor stopped and said something [to the man] like, ‘Let’s all cool down here, I’m going to call 911,’ ” said the mayor’s spokesman, Patrick Curley. “He said it one or two times, according to him. When he took out his phone, that’s when the suspect attacked him.”

The man fled when he heard sirens. A suspect was arrested Sunday at a Milwaukee home, and police recovered the alleged weapon. The woman and baby were uninjured.