TRENTON, N.J. (CBS) – Officials say three firefighters were injured while battling a two-alarm fire in Mercer County.

The incident occurred on the 300 block of Church Street in Trenton, New Jersey.

According to police, the fire began in an abandoned rowhome and quickly spread to two others, displacing one family. The family is being assisted by the Red Cross, says police.

Officials report two firefighters fell and one was hit by debris while battling the fire. The firefighters were taken Helene Fuld Capitol Health Systems. None of their injuries were serious.

The cause of the fire is being investigated.

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