A US teenager committed suicide a day after two classmates secretly recorded him having sex with a man and broadcast it over the internet, it has emerged.

DNA tests have confirmed that a body found in a shallow grave in Pakistan is that of murdered American reporter Daniel Pearl, a US official has said.

The Wall Street Journal says it's confident Daniel Pearl is still alive.

An American reporter has apparently been taken hostage in Pakistan by a group seeking freedom for Pakistani fighters imprisoned at Cuba’s Camp X-Ray and for the release of a Taliban leader.