The British foreign secretary on Monday called Moscow’s continuing denials that it used a deadly nerve agent to poison a former Russian spy on English soil “absurd” as the European Union condemned the attack as “reckless.”

“The lives of many citizens were threatened by this reckless and illegal act,” EU foreign ministers said in a statement in Brussels, following a briefing by British Foreign Minister Boris Johnson about the March 4 poisoning of Sergei Skripal and his daughter.

The EU ministers called on Russia to “address urgently” information sought by the British about its Novichok nerve agent program.

They also conveyed their “unqualified solidarity” with British Prime Minister Theresa May in the dispute with Russia.

Referring to Moscow’s claims it isn’t responsible, Johnson said the “denials grow increasingly absurd.”

“What people can see is that this is a classic Russian strategy of trying to conceal the needle of truth in a haystack of lies and obfuscation,” he said.

He said Russia is “not fooling anybody anymore.”

President Vladimir Putin, who won re-election Sunday, called the allegations of Russia’s involvement “nonsense” while saying he’s ready to cooperate with London.

Speaking to supporters after his victory, Putin said “more people would have died in England if it had been a military nerve agent.”

Skripal, 66, and his daughter, Yulia, 33, were found unconscious on a bench in a shopping area of Salisbury on March 4. They remain in critical condition.

The foreign ministers of Germany, France and Sweden said they agree with Britain that Russia was behind the incident.

“We have been informed in great detail in recent days by our colleagues in Britain. All the information we have suggests that there is no alternative plausible explanation to the Russian side bearing a share of the responsibility,” German Foreign Minister Heiko Maas said.

With Post wires