LANHAM, Md. (CBSDC) — Three children were pulled from a sediment pond in Montgomery County Monday afternoon, authorities say.

One child, according to Montgomery County Fire spokesperson Scott Graham, was taken to a local hospital in critical condition. The conditions of the other two children are not yet known.

Graham tweeted one of the children rescued from the water was reportedly missing.

Rescue units were called to the scene near Reprise Drive in Rockville, Md. — just off Great Senece Highway — around 4:30 p.m.

Officials have not yet released information on the circumstances surrounding the incident.

This story will be updated.