Poland cannot accept migrants relocated under a European Union quota system after the attacks in Paris without security guarantees, its incoming European affairs minister said on Saturday, in a sign that the attacks may seriously undermine EU refugee policy.

Konrad Szymanski will take up his post on Monday in the government formed by the winners of last month's election, the conservative and eurosceptic Law and Justice (PiS) party.

Read MoreParis under attack: The issues under the headlines

"The attacks mean the necessity of an even deeper revision of the European policy towards the migrant crisis," he said at a Saturday briefing.

"We'll accept (refugees only) if we have security guarantees. This is a key condition, and today a question mark has been put next to it all around Europe," he added without elaborating on what he meant by security guarantees.