A 17-year-old has been arrested after malicious tweets were sent to Olympic diver Tom Daley.
Dorset Police said the teenager was held at a guest house in Weymouth hours after 18-year-old Daley received the messages on social networking site Twitter.
A police spokeswoman said: "A 17-year-old man was arrested by Dorset Police officers in the early hours this morning at a guest house in the Weymouth area on suspicion of malicious communications. He is currently helping police with their inquiries."

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He is being held under the Malicious Communications Act 1998

This is particularly unpleasant form of harassment is that involving malicious communications either through the post, the telephone, Fax, by cyberstalking through the internet or, an increasing problem, by the use of Text or SMS messages sent to mobile phones.
Under this legislation it is an offence to send an indecent, offensive or threatening letter, electronic communication or other article to another person and under section 43 Telecommunications Act 1984 it is a similar offence to send a telephone message which is indecent offensive or threatening. Both offences are punishable with up to six months imprisonment and/or a fine. Because the Malicious Communications Offence is wider ranging than the Telecommunications offence it is more likely to be charged by the Police than is the Telecommunications Act offence.
This is Law in the UK