Bernalillo, County, New Mexico (CNN) - crews are battling a fire on new mexico's isleta pueblo.
Fire officials say the fire started in the marsh lands yesterday afternoon (sunday) near a recreation center.
No homes or other buildings are damaged.
The cause of the fire is under investigation.
Officials say they do not know how many acres have burned.
A second fire also sparked up in a marsh near Rio communities.
Fire officials say it's unclear what caused that fire.