Kremlin questions language of 'unusual' Trump letter to Erdogan

The Kremlin has questioned the tone of a letter sent by US President Donald Trump to his Turkish counterpart Tayyip Erdogan, which it called highly unusual for correspondence between heads of state.

The White House on Wednesday released the Oct. 9 letter, in which Trump urged Erdogan: "Don't be a tough guy" and "Don't be a fool!"

"You don't often encounter such language in correspondence between heads of state. It's a highly unusual letter," Kremlin spokesman Dmitry Peskov told reporters on a conference call.

A copy of Trump's letter to Erdogan, warns him to not be a tough guy