The offender was black and had shaved hair. It is believed he was wearing a dark hooded top.
Detective Chief Inspector Vince Grey said: "I want to reassure the public that we are doing everything we can to catch this offender.
"Officers will be out in the area today, patrolling, conducting house-to-house enquiries and offering reassurance to residents.
"I urge anyone who saw a person matching this description or saw anyone acting suspiciously to get in touch with police.
"It is also important to reiterate how important it is to make sure your property is as secure as it can be."
More top news
A huge collection of historic portraits of the Royal Family is up for auction.
A Sussex policeman who saved the life of a woman after she fell from a crumbling cliff is in line for a bravery award.
A burglar was jailed for six months after he was caught red-handed , trapped in a security device at a petrol station in Basildon.