Police in Clacton say they're concerned the behaviour of a man who's been approaching children in the town is escalating, after a 20-year-old reported he'd been sexually assaulted.
They've released this e-fit of a man they'd like to speak to after a number of incidents in the last month, in which boys as young as 12 have been approached.
"This latest incident represents an escalation in this man's behaviour.
Previously he has spoken to victims and tried to persuade them to accompany him.
In this latest case he has grabbed the victim and pulled him into an alleyway off Anchor Road before sexually assaulting him."
Clacton's new Ukip MP has taken his seat in the House of Commons for the first time later following his historic by-election.
Nigel Farage hailed it an "emotional" moment for Ukip as he watched its first elected MP introduced to Parliament after victory in the Clacton by-election.
The party leader was in the Commons for the first time in more than 30 years to see Douglas Carswell re-take his seat.
Mr Carswell, who triggered the contest after defecting from the Tories, was shepherded into the chamber by former colleagues Zac Goldsmith and Sir Peter Tapsell.
Arriving at Westminster, Mr Farage said he had not been in the Commons since he was 17 - although he has been to the Lords.
Asked if it felt like an emotional moment for the party, he said: "It does. I think it is a moment.
"I am here to represent Ukip and the millions of people who we represent."
As an MEP, Mr Farage does not have automatic access to the parliamentary estate. The House authorities indicated Ukip would have needed to apply for tickets to sit in the public gallery.
The UK Independence Party's first elected MP has compared the Conservative party to HMV music stores, describing it as "defunct".
"It's a little bit like HMV music. Once ubiquitous when it came to buying music. The way the Tory party is retailing politics is like the way HMV retailed music - it is a defunct retail model," Douglas Carswell told the BBC's Andrew Marr show.
Carswell, who won the Clacton by-election with a huge majority last week, said he argued that "we needed to Spotify" the Tory Party, but found too much opposition to change.
He also played own suggestions Ukip could gain 25 MPs at the next election, saying: "Let's keep a sense of perspective....I don't like bravado talk and Ia'm not going to use it."
Carswell he was hopeful fellow Tory defector Mark Reckless would win the upcoming by-election in Rochester, saying a win would show that British politics is becoming "fundamentally different".
UKIP has accused the Westminster parties of running a smear campaign against them and has ruled out entering into any form of election pact with the Conservatives. It comes as Nigel Farage and newly elected MP Douglas Carswell hit the campaign trail in Rochester and Strood in the fight to rally support for Tory defector Mark Reckless.
Addressing supporters in the Kent constituency, Mr Farage said the party was "targeting everybody in this campaign". He said: "Let's make the people's army of Ukip march on Rochester and Strood."
UKIP supporters from across the South East flooded the Rochester and Strood constituency as the campaign to get Mr Reckless into parliament got underway.
The date for the vote is yet to be set.
Douglas Carswell has been speaking to ITV Anglia about his historic by-election win in ClactonRead the full story ›
The country's first Ukip MP has greeted his constituents hours after being elected in a by-electionRead the full story ›
Newly-elected Ukip MP Douglas Carswell has said he will "never be the leader of the UK Independence Party".
Asked if his victory speech last night was a bid for leadership, Carswell said, "I am not the leader of the UK Independence Party, I never will be the leader of the UK Independence Party".
Carswell was speaking during a visit to his Clacton constituency with Nigel Farage.
Some Conservative MPs have taken to Twitter to congratulate their former colleague Douglas Carswell on his win at the Clacton byelection: