Student protestors are disappointed they couldn't confront the Prime Minister today.

John Key was due to front media at the University of Auckland this afternoon.

His press secretary says the news conference was delayed because of noisy protestors.

But spokesman for the students, Guy Cohn, says they were simply there to ask Mr Key some questions.

"As soon we entered he was whisked away by security guards," he said.

"We probably were making some noise, but I don't know why he had to leave."

Cohn says students are growing increasingly frustrated by such evasion from the Government.