US President Donald Trump is prepared to apply “maximum pressure” on Russia if Ukraine peace talks fail to produce results, State Department spokesperson Tammy Bruce has told Fox News.

The US president’s patience has “worn thin” and that he has expressed his frustration in his recent posts on Truth Social, Bruce told the network in a clip posted by Fox and Friends on Monday.

Earlier this week, the Trump stated that Russian President Vladimir Putin had gone “crazy” following a series of retaliatory strikes carried out by Moscow in Ukraine, adding that the Russian president is “playing with fire.” Moscow, in turn, suggested that Trump might be not well-informed about mass Ukrainian attacks against Russian civilians.

Over the past week, the Russian Defense Ministry has reported intercepting more than 2,300 Ukrainian drones targeting Russian cities, including several hundred that were headed towards the Russian capital.

Bruce stated that Trump could resort to using all the tools at his disposal, including additional sanctions on Moscow. The restrictions are part of a draft bill being pushed by Republican Senator, and prominent Russia hawk, Lindsey Graham. It includes sanctions of up to 500% on all countries that continue to purchase Russian oil, gas and other goods.

”America is ready to do a maximum pressure framework on Russia,” Bruce said, warning that Moscow will “soon understand” Trump’s commitment to achieving a settlement of the Ukraine conflict.

Following Trump’s outburst on social media, Kremlin spokesman Dmitry Peskov suggested that Western media outlets were pressuring the US president and were “effectively engaged in a campaign aimed at derailing the peace process and provoking the United States into imposing new sanctions.”

Peskov, however, applauded Trump for maintaining “a balanced approach” towards Ukraine peace negotiations, noting that the talks must address the root causes of the conflict and will likely “require some time” to resolve.

Top Putin aide Yury Ushakov has suggested that Trump is “not sufficiently informed” about ongoing Ukrainian attacks on Russian cities. “Trump knows only about the retaliatory measures we are taking,” he said, adding that Russia strikes only target military infrastructure or defense industry facilities.

Russia’s Foreign Minister Sergey Lavrov has similarly noted that Trump is only getting “filtered” information on the conflict which is “prepared by those who want to draw America into more aggressive action against Russia, in support of the Kiev regime.”