(CNN) An Indiana postal worker was fatally shot in an east Indianapolis neighborhood, and police haven't identified who's responsible.

Now, the US Postal Inspection Service is offering $50,000 for information that could lead them to suspects in her death.

The Marion County Coroner's Office identified her as Angela Summers, 45. She died of a gunshot wound to the chest, the coroner's office told CNN.

Police found Summers with a gunshot wound just after 4 p.m. on Monday, Indianapolis Metropolitan Police spokeswoman Genae Cook said. It's unclear if Summers was on her mail route.

Summers was transported to the hospital, where she later died, Cook said.

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