U.S. Sen. Elizabeth Warren, D-Massachusetts, on Tuesday lauded those who spoke out against Senate Republicans' plan to dismantle the Affordable Care Act, but cautioned that a delay in the chamber's vote doesn't mean the bill is dead yet.

The Massachusetts Democrat, who has been an outspoken critic of the legislation known as the Better Reconciliation Act, thanked Massachusetts residents and others who made their opposition known on the GOP-backed health care bill.

Warren said she was "deeply relieved" Senate Majority Leader Mitch McConnell, R-Kentucky, announced plans to delay the chamber's expected vote on the measure amidst such pushback.

"I'm deeply relieved that (McConnell) delayed a vote on the Senate GOP's bill to rip health care away from 22 million Americans," she tweeted. "People in Massachusetts (and) across this country spoke out against this terrible 'health care' bill. Today, you proved that you made your voices heard."

I’m deeply relieved that @SenateMajLdr delayed a vote on the @SenateGOP's bill to rip health care away from 22 million Americans. — Elizabeth Warren (@SenWarren) June 27, 2017

People in MA & across this country spoke out against this terrible "healthcare" bill. Today, you proved that you made your voices heard. — Elizabeth Warren (@SenWarren) June 27, 2017

The senator, however, raised concerns that Republicans are not yet finished with their efforts to repeal and replace the ACA.

Noting that McConnell is optimistic he will get the number of votes needed to advance the GOP Senate health care bill, Warren urged supporters to remain vocal in their opposition to such efforts.

"Let's be clear: The Republicans' so-called 'health care' bill comes back to life more often than the lead zombie in a horror movie," she posted on the social media platform. "(McConnell) says he'll get the votes he needs to repeal the Affordable Care Act. It's still up to us."

"We must keep fighting to save the Affordable Care Act and improve health care for American families," she continued.

But let’s be clear: The Republicans’ so-called “healthcare” bill comes back to life more often than the lead zombie in a horror movie. — Elizabeth Warren (@SenWarren) June 27, 2017

.@SenateMajLdr says he'll get the votes he needs to repeal the Affordable Care Act. It’s still up to us. — Elizabeth Warren (@SenWarren) June 27, 2017

We must keep fighting to save the Affordable Care Act & improve healthcare for American families. — Elizabeth Warren (@SenWarren) June 27, 2017

McConnell told reporters Tuesday that several members wanted more time to consider the legislation before a vote and stressed that conversations surrounding the proposal remain ongoing.

"We're going to continue the discussions within our conference on the differences that we have, that we're going to continue to try to litigate. Consequently we will not be on the bill this week, but we're still working toward getting at least 50 people in a comfortable place," he said.

McConnell had sought to advance the Senate GOP health care bill through his chamber before lawmakers left Washington D.C. for their Independence Day recess.

Republicans have touted the legislation, which was unveiled late last week, as a way to help stabilize insurance markets, "free the American people from the onerous Obamacare mandates," enhance health insurance affordability and strengthen the Medicaid program.

At least five GOP senators, however, have raised concerns over the legislation and said they would vote against beginning debate on the proposal.

Democrats, by contrast, have vocally opposed the bill, which is largely similar to the House-passed American Health Care Act, but would cut off expanded Medicaid funding more gradually and enact deeper long-term cuts to the program, among other things.