Two cats died, a third was rescued, when a fire broke out in the second floor of a house at the north end of Robie Street Thursday evening. No one else was home at the time.

Capt. Brad Connors, of Halifax Regional Fire and Emergency, said it didn't take long for fire crews to put out the blaze.

"We knocked the fire down pretty quickly," said Connors. "Could have been a lot worse."

The blaze on Robie Street Thursday evening was put out quickly, said Capt. Brad Connors with Halifax Fire. (CBC)

Connors said the fire began in the northwest corner of the house on the second floor.

No one was home at the time of the blaze.

He said the cause of the blaze is still unknown.

"We're going to send in our investigators and do a thorough investigation to determine a cause," Connors said.