Poland, a NATO and European Union member, accuses Russia and Belarus of orchestrating a flood of migrants seeking asylum in a "hybrid" attack to destabilise Europe.

"63 soldiers have been injured while stopping illegal migrants since the beginning of 2024," Polish deputy defence minister Pawel Bejda said on Thursday.

Migration tops the agenda as some EU leaders, gathered in Brussels for the bloc's summit talks, multiplied calls to harden its migration policy.

Polish Prime Minister Donald Tusk announced he would seek to impose in his country a temporary, limited "suspension" of asylum rights for irregular migrants.

Speaking to reporters in Brussels, Tusk said the measure would concern asylum seekers who crossed to Poland "illegally, by force, that is, on the Belarusian border."

Tusk, the leader of centrist ruling coalition in power in Poland since December, has in the past accused Moscow of smuggling people from Africa and sending them to the Polish border through Belarus.

According to Warsaw, nearly 28,000 irregular attempts to cross to Poland from Belarus have been registered this year, compared to 25,702 during the same period last year.

"Every day, thousands of Polish soldiers, policemen, border guards are not guarding but fighting against the pressure organised by the (Belarusian President Alexander) Lukashenko regime," Tusk said last week.

"This resembles a war landscape rather than a normal border policy. Shots are heard every day," he added.

In June, a Polish soldier on patrol at the border was fatally stabbed through a five-metre-high (16-foot) metal fence that Poland had erected in 2022.