New Mexico State Police are investigating the death of a man whose body was found near the Santa Fe River under Siler Road on Thursday afternoon.

Santa Fe police were dispatched to the area around 2 p.m., Deputy Chief Ben Valdez wrote in an email. State police have taken over the investigation into what happened, Valdez wrote.

Valdez declined to provide more information about police response to the incident or the initial investigation, including whether the death was being investigated as a homicide.

State police spokesman Wilson Silver declined to provide any information about the agency’s investigation, writing Thursday evening the agency is “waiting for details” before anything could be confirmed.

City, county and state officers all responded Thursday to Siler Road near the Santa Fe River. Cruisers from all three law enforcement agencies lined either side of the road Thursday afternoon and into the evening.

Two city police officers stood underneath the bridge where Siler Road crosses the river, directing pedestrians to walk out of the riverbed and up onto the Santa Fe River Trail. Yellow crime scene tape was placed around a section of the riverbed under the bridge.

Several more officers and sheriff ’s deputies stood at the end of the trail, just south of Siler.

Nearby resident Lawrence Martinez said he saw the body around 3 p.m., while police were on the scene investigating.

The man’s age and any details regarding how he might have died were unclear, Martinez said, but he could

see what appeared to be a male lying “slanted” on a concrete slab in blue jeans and a white shirt. In the hours afterward, he said, officers covered the body with a black blanket.

The spot where the body appears to have been found, next to the riverbed, sits in a small stretch of county land that borders the city limits, as shown on the city of Santa Fe’s geographic information system map. In September, a Santo Domingo Pueblo man was found dead under a bridge near the N.M. 599 Rail Runner Express commuter station at the southwestern edge of the city. Police opened a homicide investigation into the killing of Aaron Garcia, 50.

Charges have not been filed in that case.