Łukasz Jasina made the statement at a news conference in Warsaw, Poland's PAP news agency reported.
He was asked about the Polish idea in the wake of recent comments by Ukrainian President Volodymyr Zelensky.
The Ukrainian leader said in an interview on Sunday that Kyiv had offered to invite peacekeepers at the start of the Russian invasion when there were "risks associated with our nuclear power plants, with other strategically significant entities," according to the Polish state news agency.
"But it didn’t occur. That’s the current state of things," Zelensky was quoted as saying.
Referring to the Polish plan, Zelensky said, according to PAP: “I do not really understand this proposal. We do not need a frozen conflict in our territory, and I explained that at the meeting with our Polish colleagues."
Jasina told reporters on Tuesday that Poland was “in complete agreement with President Zelensky and his take on the issue.”
He said: “We don’t want a prolonged, frozen conflict in Ukraine, either."
‘Peacekeeping plan is for our Ukrainian friends to approve’
Jasina added that the peacekeeping plan, put forward earlier this month by Polish Deputy Prime Minister Jarosław Kaczyński, “remains at the disposal of our Ukrainian friends.”
He told the news conference: “If our Ukrainian friends decide to use this plan, we remain at their disposal."
He added, as quoted by PAP: “In this matter, we are at the service of the Ukrainian people."
Tuesday was day 34 of the Russian invasion of Ukraine.
(pm/gs)
Source: PAP, euractiv.com, meduza.io