LONDON >> A 19-year-old man was arrested in England on suspicion of taking part in Web attacks against businesses and government agencies, authorities said Tuesday.

The man, who was not immediately identified by police, was arrested on suspicion of computer misuse and fraud in Wickford, Essex, in southeast England, by British police in cooperation with the FBI, authorities said.

A police statement indicated the suspect was being questioned at a central London police station. The accusations include attempts to keep computer users from accessing information or services.

“The arrest follows an investigation into network intrusions and Distributed Denial of Service attacks against a number of international business and intelligence agencies by what is believed to be the same hacking group,” police said.

The arrests come amid hacking by groups such as LulzSec, also known as LulzSecurity, and Anonymous, as well as others — such as the unidentified groups that have hacked the International Monetary Fund and Sega.

LulzSec claims to have struck government-related websites, Sony, Bethesda, Nintendo and PBS in recent weeks. Anonymous has been blamed in part for taking part in attacks on Sony that disabled the company’s PlayStation Network and Qriocity online entertainment services.

In January, five alleged members of Anonymous were arrested in England, with three other suspects arrested in Spain and 32 in Turkey.

Soon after British police announced the arrest Tuesday, LulzSec said on Twitter that the teenager wasn’t a member of its ranks.

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(Stobart is a staff writer in the Times’ London bureau. Olivarez-Giles reported from Los Angeles.)