Belarusian President Alexander Lukashenko announced on Tuesday that he had ordered the deployment of troops on the country's western border in full combat readiness.
Speaking at a meeting with the country's Security Council, Lukashenko said protests in the country were not spontaneous and that the events would escalate further.
He criticized the opposition's suggestion for the country to join NATO and the EU, saying that "no one is waiting for" Belarus in these organizations.
As for a proposed "coordination council" of the opposition, he said this was an attempt to seize the power.
Further, the opposition's demand to leave the Collective Security Treaty Organization would lead to the dismantling of Belarus's defense systems, as Russian hardware would have to be discarded and the country's arms would soon fall into disrepair.
In a separate statement, the Belarusian Defense Ministry said it deployed air defense systems on its borders, with fighter jets patrolling its airspace.
The ministry invited the military attaches of Germany, the UK, Lithuania, Poland and Ukraine to brief them on steps that would be taken in response to "threats against Belarus' national security".
After the Security Council meeting, Lukashenko held a phone talk with Russian President Vladimir Putin.
Putin informed Lukashenko on his recent contacts with German Chancellor Angela Merkel, French President Emmanuel Macron and President of the European Council Charles Michel.
He said he expressed to them concern in connection with some countries' attempts to put pressure on Belarus and destabilize the country.
Meanwhile, US Defense Secretary Mark Esper requested a phone call with his Russian counterpart, Sergey Shoygu.
Esper and Shoygu discussed "issues of confidence-building measures and transparency in order to prevent incidents in the course of the parties' military activities," and exchanged views on conflicts in different parts of the world, the Russian Defense Ministry said in a subsequent statement.
This week, some EU countries rejected the result of Belarus's recent presidential election, as tens of thousands of demonstrators took to the streets demanding a new, fair presidential election.
Belarusian opposition leader Svetlana Tikhanovskaya said on Monday that she was "ready to lead the nation" through a transitional period to end the unrest and organize "in the shortest terms" a new "fair and open presidential election."
Alexander Lukashenko, who has ruled Belarus for 26 years, officially won the election with 80.1% of votes. His main rival, Tikhanovskaya, scored only 10.12%, according to the Central Election Commission.
Lukashenko refused to hold a new vote, saying: "You won't see me doing anything under pressure."Anadolu Agency website contains only a portion of the news stories offered to subscribers in the AA News Broadcasting System (HAS), and in summarized form. Please contact us for subscription options.