US President Donald Trump and German Chancellor Angela Merkel have shared concern over President Vladimir Putin's claim Russia was developing new "invincible" weapons.
"The chancellor and the president voiced concern about Russian President Putin's latest remarks on arms development and its negative impact on international arms control efforts," said a statement by the German chancellery.
It comes after Mr Trump and Ms Merkel spoke on the phone today.
Mr Putin unveiled the new arsenal yesterday in a state of the nation address, and showed a series of video montages of missiles crossing mountains and oceans, heading over the Atlantic before striking the US eastern seaboard.
The United States accused Moscow of openly breaching Cold War-era treaties by developing what Mr Putin called a new generation of "invincible" hypersonic weapons and submarines.
Ms Merkel's spokesman Steffen Seibert said the German government was "worried about the entire security policy of Russia".
This ranged from "the blatant violations of international law through the annexation of the Crimea... to threatening behaviour against neighbouring states to the deliberately undermining arms control agreements", he said.
Earlier, a spokesperson for NATO said that Mr Putin’s warnings to NATO allies were "unacceptable" and did not help efforts to calm tensions.
"Russian statements threatening to target allies are unacceptable and counterproductive," spokesperson Oana Lungescu said in a statement.
"We do not want a new Cold War or a new arms race," she said, also adding that NATO's US-built missile defence system in Europe was not aimed at Russia.
