Influential American Senator John Kerry today met Prime Minister Manmohan Singh [Images] and discussed the Mumbai terror attacks and the situation arising out of it.

During the meeting, Singh is understood to have apprised the senator about the details of attack which were carried out by the Pakistan-based outfit, Lashkar-e-Taiba (LeT).

Kerry, a Democrat Senator considered close to President-elect Barack Obama [Images], has said LeT was being nurtured by Pakistan's intelligence agency ISI, which had founded the terror organisation.

He has also demanded reform of the ISI. Kerry's visit to India comes four days after the US Congress asked Pakistan to "root out" all extremist groups operating in the country and ensure that its territory is not used as a "safe haven and training ground" for terrorists. His visit follows a stream of visits from the United States, including that of Secretary of State Condoleezza Rice [Images], Deputy Secretary of State John Negroponte, influential senator John McCain [Images] and Joint Chiefs of Staff Admiral Mike Mullen.

The United States has already mounted pressure on Pakistan to act against terror groups responsible for the attacks in Mumbai.