Washington, Sep 19 (DPA) A suspect in an alleged terrorist plot in New York has told investigators he has ties to Al Qaeda and could plead guilty, US media quoted unnamed sources as saying Friday.

The FBI had been questioning Najibullah Zazi in Denver since Wednesday, and he admitted his connections on Friday after two eight-hour interrogation sessions, the New York Daily News reported.

He had travelled to New York earlier this week, prompting a series of raids by law enforcement. Zazi had been under investigation for nearly a year.

Zazi, a 24-year-old Afghan national, reportedly had travelled to a terrorist training camp in Pakistan and had bomb-making instructions on his computer. ABC News reported the information could have produced explosives similar to those used in attacks on the London subway system in 2005.