"No amendments to the Constitution will be adopted if a martial law or a state of emergency is introduced," he said.
According to Poroshenko, the fate of constitutional amendments depends on the overall progress in implementing the Minsk agreements on the settlement of the situation in Donbas.
"If Moscow decides to "bury" the Minsk agreements, we will return to the contents of amendments to the Constitution," he said.
"If, God forbid, the situation comes to martial law or a state of emergency... No amendments to the Constitution in this case," Poroshenko said.
As UNIAN reported earlier, on September 5, Ukrainian President Petro Poroshenko once again said there was no alternative to the Minsk agreements to settle the conflict in the eastern part of the country.
"There exists no alternative to the Minsk agreements. If we want to return these areas of Ukraine, if we want to end the occupation, if we want to regain control over the Ukrainian border, if we want to free the Ukrainian hostages who are illegally held both in the occupied territories and in Russia," he said.