Cavusoglu's remarks came after U.S. President Donald Trump said Turkey "has not proven to be a good friend" during a Cabinet meeting Thursday. "They are now holding our wonderful Christian Pastor, who I must now ask to represent our Country as a great patriot hostage", he wrote.
Finance Minister Berat Albayrak, Mr Erdogan's son-in-law, told investors on Thursday that Turkey would emerge stronger from the currency crisis, insisting that its banks were healthy and signalling it could ride out the dispute with Washington.
The prospect of the United States and China returning to the table instead of trading tariff increases brought some relief to investors.
The currency crisis has deepened concerns about the broader economy - particularly Turkey's dependence on energy imports and whether foreign-currency debt levels pose a risk to the banking sector.
At 0937 GMT (5.37pm Singapore time), the currency stood at 6.2499 to the USA dollar, almost 7 per cent weaker.
President Trump responded to the Turkish court's decision on Friday, saying, "We are not going to take it sitting down".
The dispute is one of several between the North Atlantic Treaty Organisation allies, including diverging interests in Syria and United States objections to Ankara's ambition to buy Russian defence systems, that have contributed to instability in Turkish financial markets.
Last week, Trump tweeted that his administration was doubling aluminium and steel tariffs for Turkey, which promoted Ankara to sharply hike tariffs on some U.S. products. Inflation has hit 16 per...
Analysts say a sharp hike in interest rates is needed to stop the declining value of lira, but Ankara is opposed to any rate hike which would likely undercut growth.
A decree by Mr Erdogan doubled Turkish tariffs on imports of USA passenger cars to 120 per cent, alcoholic drinks to 140 per cent and leaf tobacco to 60 per cent. Tariffs were also doubled on goods such as cosmetics, rice and coal.
He has also warned Ankara could start looking for new allies, as well as new markets.
Turkey's minister of finance and his French counterpart on Friday agreed to work together to take action against U.S. sanctions on Turkey.
Brunson is accused of backing a 2016 coup attempt against Mr Erdogan, which Brunson denies.
"Both leaders emphasised the importance of fostering economic and trade relations as well as mutual investments", the source said.
"Turkey will continue cross-border operations by expanding them further", Erdogan said.