US President Donald Trump told Norway’s prime minister he no longer needed to think “purely of peace” after failing to win the Nobel Peace Prize, in a message published on Monday.

“Considering your Country decided not to give me the Nobel Peace Prize for having stopped 8 Wars PLUS, I no longer feel an obligation to think purely of Peace,” Trump said in a message to Norwegian Prime Minister Jonas Gahr Støre.

It is unclear why Trump decided to send a message to Støre as the peace prize is decided by the Norwegian Nobel Committee and not the government.