UPDATED Thursday, August 28 --- 6:40am

MILWAUKEE (AP) -- Milwaukee police say they've caught a House of Corrections inmate who escaped from a van while traveling to a doctor's appointment.

House of Correction assistant superintendent Jeffrey Mayer says 23-year-old Martin Williams had been held there since May 8 on a charge of armed robbery with threat of force.

Mayer says Williams overpowered an officer while getting out of the van at a medical center Wednesday morning. He later shed his orange jail jumpsuit.

Police discovered Williams around 5 p.m. when he ran from a vehicle. He was caught after a brief foot chase.

Copyright 2008 by The Associated Press. All Rights Reserved.

____________________________________________________

Wednesday, August 27, 2008 --- 12:35 p.m.

According to the Milwaukee Journal Sentinel:

Milwaukee County House of Correction officials identified an escaped prisoner as Martin Williams, who overpowered an officer when he was exiting a van for a doctor's appointment at Aurora St. Luke's Medical Center this morning, according to Jeffrey Mayer, assistant superintendent at the House of Correction.

Mayer reported that the officer as well as Milwaukee police pursued Williams, 23, as he fled from the area of 2901 S. Kinnickinnic River Parkway about 10:51 a.m. There is no indication that the corrections officer was hurt when he was overpowered by Williams, Mayer said.

Williams, of Milwaukee, is described as having black hair and brown eyes, about 6 feet tall and 200 pounds.

He has been held in the House of Correction since May 8, when he was transferred from the Milwaukee County Jail on a charge of armed robbery with threat of force, according to Mayer. Williams' trial is scheduled for Oct. 13. He is also on a felon probation hold, Mayer noted.

Williams fled wearing an orange jumpsuit and a grayish white T-shirt underneath. He had a waist chain but apparently had gotten out of his leg irons.

Mayer said House of Correction officials will review "the entire incident" to determine how Williams escaped.

"We will wait until all of the reports are submitted from anybody that had any contact with this inmate this morning," he said.