“It has been clear for some time that Russia does not wish us well in Afghanistan,” they said in a joint statement. “We believe it is important to vigorously pursue any information related to Russia or any other country targeting our forces.”
Other Republicans who attended the briefing were more sanguine. In an interview, Representative Chris Stewart of Utah said he saw nothing unusual about the purported decision not to orally inform Mr. Trump, particularly when the situation did not require the president to take immediate action.
“It just didn’t reach the level of credibility to bring it to the president’s attention,” he said, adding that military and intelligence agencies should continue to scrutinize Russia’s activities.
The Associated Press first reported that the intelligence community was examining the deaths of the three Marine reservists: Staff Sgt. Christopher Slutman, 43, of Newark, Del.; Cpl. Robert A. Hendriks, 25, of Locust Valley, N.Y.; and Sgt. Benjamin S. Hines, 31, of York, Pa.
They were killed near Bagram Air Base when a vehicle laden with explosives hit their truck, wounding an Afghan contractor as well. The huge blast set fire to the truck, engulfing those inside in flames, while their fellow Marines tried to extricate them, a defense official said. A brief firefight ensued.
Gen. Zaman Mamozai, the former police chief of Parwan Province, where Bagram Airfield is, said that the Taliban there hire freelancers from local criminal networks, often blurring the lines of who carried out what attacks. He said the Taliban’s commanders were only based in two districts of the province, Seyagird and Shinwari, and from there they coordinate a more extensive network that largely commissions the services of criminals.
The Taliban have denied involvement. And a spokesman for President Vladimir V. Putin of Russia, Dmitry Peskov, told NBC News on Monday that reports of the Russian scheme were incorrect. He said that “none of the American representatives have ever raised this question” with their Russian counterparts through government or diplomatic channels.