A Winthrop woman has died four days after she was badly injured in a crash on U.S. Route 202 that claimed the life of her husband.

Patricia St.Laurent, 74, died Monday afternoon at Central Maine Medical Center in Lewiston, where she had been in critical condition since the Thursday crash.

“She died just a few minutes ago from complications from the accident,” St.Laurent’s daughter-in-law, Alissa St.Laurent, said by telephone shortly after 2 p.m. Monday.

Winthrop Police Chief Joseph Young confirmed the death Monday.

St. Laurent and her husband, Richard St.Laurent, who was killed in the crash, would have celebrated their 54th anniversary Tuesday, according obituary submitted Monday to the Kennebec Journal.

Patricia St.Laurent was flown to the hospital Thursday morning after the van in which she was riding was hit from behind by a box truck on U.S. Route 202. Richard St.Laurent, was pronounced dead at the scene.

The driver of the box truck, Jeffrey Ray, 44, of Scarborough, also was flown to CMMC after the crash. He was no longer at the hospital Friday afternoon, according to the representative.

The crash occurred shortly before 9 a.m. as the St.Laurents’ 1996 Ford E-150 van was stopped in the eastbound lane waiting to make a left turn onto Royal Street. Ray, driving a 2007 Mitsubishi box truck east on U.S. 202, hit the van from behind, Young said. Young said the impact pushed both vehicles into the right-side guard rail and down the road before coming to rest against the guardrail.

Young said Monday that the crash remains under investigation and that nobody has been charged.

Richard and Patricia St. Laurent had five grown children and were foster parents to several children, according to the couple’s obituary.

Craig Crosby — 621-5642ccrosby@centralmaine.com