Lahore: Controversial American businessman Mansoor Ijaz, the central character in the memo scandal, has "no credibility" and one should not worry too much about his claims, Prime Minister Yousuf Raza Gilani said on Sunday.

Ijaz has no links to Pakistan and has a long record of spreading "poison" against Pakistan and the country's establishment and government, Gilani told reporters here.

Describing Ijaz as a person with "no credibility", the Premier said it seemed "like some country's viceroy was coming (to Pakistan) and we have to deploy our army to protect him though he is not entitled to get such protocol under the Constitution and the law".

Asked about Ijaz's demand that the army should protect him for his appearance on January 24 before a Supreme Court-appointed commission investigating the memo issue, Gilani said it was the Interior Ministry's duty to protect Ijaz under the rules of business and the Constitution.

"Under the rules of business, the Interior Ministry will provide security and the civilian government can seek assistance, as and when required, from the Pakistan Rangers, the army and law enforcement agencies," he said.

Ijaz created a storm in Pakistan's political circles by making public an alleged memo that sought US help to stave off a feared military coup in Pakistan last year.

Gilani said it was "uncalled for" to worry so much about Ijaz's claims.

"The world will think we are so weak that on one article (written by Ijaz), the government falls and our institutions become weak," he said.

"We are sending a very wrong signal to the world that we cannot settle our matters and we will have to spend a lot of money on his security," he added.