The FBI appears to have foiled another Mumbai-type attack on India. This time involving an American citizen.

A report on the FBI website says the agency has arrested David Coleman Headley, who was planning attacks on India and Denmark, along with top Lashkar-e-Toiba operatives, based in Pakistan.

Headley and a Pakistani-Canadian, Tahawwur Hussain Rana, were planning to attack the offices of the Danish newspaper that published cartoons of Prophet Mohammed; also on their target list, cities in India.

The FBI affidavit says Headley visited India to plan the attack on behalf of the LeT. He was also in close contact over e-mail with Ilyas Kashmiri and several unidentified leaders of LeT, two of whom are identified as "LeT member A" and "LeT member B."

The agency also claims that Headley was in touch with a prominent Indian actor who his associates and he referred to as 'Rahul."

The new revelations will put American citizens travelling to India under close scrutiny by both US security agencies, and by India.