The literary agent for Rushdie said Sunday that the author was on the road to recovery after he was stabbed by a New Jersey man during a performance.

Cheltenham Literature Festival

Rushdie was at the festival.

Getty Images

The author's son said in a statement that his father was taken off the ventilator and was able to speak, but he remains in critical condition.

Rushdie has a defiant sense of humor despite his injuries.

Andrew Wylie, Rushdie's literary agent, told the New York Times that Rushdie's condition isheading in the right direction, though he noted Rushdie's injuries are "severe"

Intelligence sources told Vice News that the man who stabbed Rushdie was in contact with members of Iran's Revolutionary Guard on social media.

Matar's father, who lives in southern Lebanon, has reportedly locked himself inside his home and is refusing to speak to anyone about the charges against his son or the knife attack.

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The country's political system is protected by the Revolutionary Guard. It is one of the most powerful and influential institutions in Iran. The group was classified as a foreign terrorist organization by the president.

Rushdie was stabbed during a talk about exiled writers in the U.S. Rushdie spent years in hiding after religious leaders called his novel "Pious" because it was inspired by the life of Muhammad. At least five people have been violently attacked, including two translators, since Rushdie was stabbed.

The father of the suspect refused to speak about the attack.

The suspect in the case had contact with Iran's Revolutionary Guard.

The suspect in the murder of Rushdie is the latest in a long line of people who have been attacked because of their literary works.

The author attacked on stage.