New Hampshire wildlife officials say several more ducks have died since nearly two dozen of the wild birds were found dead in a storm runoff basin in Concord.
Conservation officers recovered 22 dead ducks Saturday from the oil-contaminated water at a housing development. Another four ducks were captured and taken to a wildlife rehabilitation center, but two have since died, along with another duck found walking in a driveway.
Officials are investigating how what appears to be motor oil ended up in the basin.
