Police are searching for a man who may have been involved in the theft of two pugs from a home in Sydney's southern suburbs.

It is alleged the two dogs were taken from the front of a house Alexander Street in Alexandria in the early hours of yesterday morning.

The owner, who has not publicly been identified, has claimed to offer a $5000 reward if they are found and safely returned, according to missing posters seen by 9news.com.au.

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They are both black pugs, with Olive being six years old and Monty being 11 years old.

"My two pugs were stolen at 3.30am on Sunday 23rd November," the poster begins

"$5,000 reward if they are found and safely returned to their loving home."

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Police are investigating the incident, and are looking to speak to a man seen in the area at the time of the alleged theft.

He is described as being of Caucasian appearance, of large build and was last seen wearing a grey t-shirt with a white branding logo the front and a black and white stripe pattern in the centre of the back, dark coloured shorts, a black baseball cap with tan work boots.

The man was also carrying a blue, tan and white coloured shopping bag.

Anyone with information about the incident is urged to contact South Sydney Police or Crime Stoppers on 1800 333 000.

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