A woman fell from an interstate overpass near downtown Chicago with a young girl Monday afternoon, leading police to temporarily shut down ramps on the Dan Ryan Expressway, authorities said.

Chicago Fire Department paramedics responded to the fall around 1 p.m., fire department spokesman Larry Langford said. Witnesses saw the woman threatening to jump from the Harrison Street bridge, and cars stopped on the expressway, he said.

One motorist said he saw the woman come over the bridge’s rail holding the arm of the child as he exited his car. Then he saw the woman and girl both fell to the roadway below, Langford said.

The woman is around 30 years old, while the girl is around 5 years old and is thought to be the woman’s daughter, he said.

CFD paramedics transported both the woman and the young girl to Stroger Hospital. Langford described the woman’s condition as “critical to grave” and the girl’s as “serious to critical.”

A Chicago police spokesperson confirmed Monday afternoon the department had responded to a call for service at the location, but said they did not have further information to share at the time.

The ramps from the inbound Dan Ryan Expressway to the Eisenhower Expressway were blocked shortly after 1 p.m. for a police investigation, the Illinois Department of Transportation wrote in a tweet. The ramps reopened at 2:22 p.m., the department said later.

Shortly after the fall occurred, IDOT and CPD vehicles were blocking the ramp at the scene. A vehicle sat stopped on the closed off overpass. Traffic below on the northbound Dan Ryan Expressway was flowing.

This is a developing story. Check back for more updates.