The United States and Russia are feuding, expelling diplomats in what Washington calls a new post-Cold War low, but that didn't stop U.S. Secretary of State Rex Tillerson and Russian Foreign Minister Sergey Lavrov from meeting for the first time since lawmakers on Capitol Hill imposed new sanctions against Moscow.

As investigations plow ahead into Russia's alleged meddling in the 2016 U.S. presidential election, the two held talks Sunday on the sidelines of an Asian regional gathering in the Philippines. They smiled and exchanged pleasantries but made no substantive remarks to journalists briefly permitted to observe the start of the meeting.

Neither Tillerson nor Lavrov responded to a shouted question about how the new U.S. penalties might affect their discussions.

More than an hour later, Tillerson emerged from the meeting and boarded his motorcade without commenting.

Tillerson and President Donald Trump opposed the sanctions package, passed by Congress in July, that makes it harder for Trump to ever ease penalties on Russia. Trump signed the bill last week, but called it "seriously flawed" and made sure that his oppositon was clearly stated.

"Our relationship with Russia is at an all-time & very dangerous low. You can thank Congress, the same people that can't even give us H(ealth)Care!" he wrote on Twitter.

The White House said Trump's opposition stemmed from the bill's failure to grant the president sufficient flexibility on when to lift sanctions.

Trump's administration has argued there's good reason for the U.S. to seek a more productive relationship. Tillerson has cited modest signs of progress in Syria, where the U.S. and Russia recently brokered a cease-fire in the war-torn country's southwest, as a sign there's fertile ground for cooperation.

Yet Russia continues to chafe at the suggestion it interfered in the U.S. election. The former Russian ambassador in Washington, Sergey Kislyak, denied those allegations in an interview Saturday on Russian state television. He said he was merely carrying out his duties as a diplomat when he met with members of Trump's campaign team.

"Any diplomat, Russian or not, works to better understand the policy of a country he's posted to, figure out what the new administration's course is and understand where cooperation is possible," Kislyak said.

Still, a U.S. Justice Department investigation is moving ahead into Russia's election interference and potential Trump campaign collusion. Trump denies any collusion and has repeatedly questioned U.S. intelligence about Moscow's involvement. Trump has tried to turn the issue into a political rallying cry, arguing that the controversy is an attempt by Democrats and the media to undermine the tens of millions of Americans who voted for him.