Two masked men dressed in black entered the Lombardy Place home around 3 a.m. and demanded money at gunpoint, a woman who lives there told the station.
The woman's fiance grabbed one of the guns and fired a shot and the intruders fled, she said.
Police later determined the intruders got in through a bathroom window at the rear of the house.
It is not known whether either of the intruders had been hit by gunfire.
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