Reacting to an explosive New York Times report on US support for the Ukraine military, Pentagon Spokesman John Kirby said it was true that the United States supplies Kyiv's forces with military intelligence "to help Ukrainians defend their country."

"We do not provide intelligence on the location of senior military leaders on the battlefield or participate in the targeting decisions of the Ukrainian military," Kirby said.

The New York Times reported late Wednesday that intelligence provided by the United States has helped the Ukrainian military target and kill several Russian generals since Moscow's invasion.

Citing anonymous senior US officials, the newspaper said that of the approximately dozen Russian generals killed by Ukrainian forces, "many" had been targeted with the help of US intelligence.

Ukraine has been particularly successful in attacking Russian command positions, and, according to reports, came close last week to striking a location near the front lines in the Donbas region where Russia's top general, Valery Gerasimov, was believed to be visiting troops.

Ukraine forces may have shelled the location just a few hours after Gerasimov had left, the unconfirmed reports said.

The New York Times said the United States had provided details on the Russian military's mobile headquarters, which frequently change location.

It reported that Ukrainian forces used that information in tandem with their own to conduct attacks on senior Russian officers.

Kirby said Ukraine makes its own decisions on whether to target a Russian leader or not.

"Ukraine combines information that we and other partners provide with the intelligence that they themselves are gathering on the battlefield," he said.

"Then they make their own decisions, and they take their own actions."

The White House National Security Council slammed the New York Times report as "irresponsible."

"The United States provides battlefield intelligence to help the Ukrainians defend their country," NSC spokesperson Adrienne Watson said.

"We do not provide intelligence with the intent to kill Russian generals."

Washington is supplying billions of dollars worth of military equipment and munitions to Ukraine and is training their forces on how to operate them.

It is also providing Kyiv with information garnered from satellites, electronic surveillance operations and other sources of intelligence.

But the White House and Pentagon have sought to limit knowledge of the full extent of the US assistance, hoping to avoid provoking Russia into a broader conflict beyond Ukraine's borders.

Even so, Washington's support for Ukraine has only grown, and become more forthright, since the Russians invaded on February 24.

At the beginning the US said it wanted only to help Ukraine survive.

But now Washington says its goal in the war is to debilitate Russia for the long term.

"We want to see Russia weakened to the degree that it can't do the kinds of things that it has done in invading Ukraine," US Secretary of Defense Lloyd Austin said after a visit to Kyiv in late April.

des/sw/pmh/des

THE NEW YORK TIMES COMPANY