Carmen Yulín Cruz, the mayor of San Juan, Puerto Rico, blasted President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE on Thursday after the president claimed without evidence that the death toll from Hurricane Maria had been inflated by Democrats to make him look bad.

"This is what denial following neglect looks like: Mr Pres in the real world people died on your watch. YOUR LACK OF RESPECT IS APPALLING!" Cruz tweeted.

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"Mr Trump you can try and bully us with your tweets BUT WE KNOW OUR LIVES MATTER. You will never take away our self respect. Shame on you!" she added in a subsequent tweet.

This is what denial following neglect looks like: Mr Pres in the real world people died on your watch. YOUR LACK OF RESPECT IS APPALLING! pic.twitter.com/OJEDqT74Sr — Carmen Yulín Cruz (@CarmenYulinCruz) September 13, 2018

Mr Trump you can try and bully us with your tweets BUT WE KNOW OUR LIVES MATTER. You will never take away our self respect. Shame on you! pic.twitter.com/KlMzClvzkA — Carmen Yulín Cruz (@CarmenYulinCruz) September 13, 2018

Trump on Thursday cast doubt on a study that found nearly 3,000 people died as a result of Hurricane Maria, which devastated Puerto Rico last year.

"3000 people did not die in the two hurricanes that hit Puerto Rico. When I left the Island, AFTER the storm had hit, they had anywhere from 6 to 18 deaths," Trump tweeted. "As time went by it did not go up by much. Then, a long time later, they started to report really large numbers, like 3000."

3000 people did not die in the two hurricanes that hit Puerto Rico. When I left the Island, AFTER the storm had hit, they had anywhere from 6 to 18 deaths. As time went by it did not go up by much. Then, a long time later, they started to report really large numbers, like 3000... — Donald J. Trump (@realDonaldTrump) September 13, 2018

He went on to claim that Democrats were responsible for the increased death toll as part of a plot to make him look "as bad as possible."

"If a person died for any reason, like old age, just add them onto the list. Bad politics. I love Puerto Rico!" Trump tweeted.

.....This was done by the Democrats in order to make me look as bad as possible when I was successfully raising Billions of Dollars to help rebuild Puerto Rico. If a person died for any reason, like old age, just add them onto the list. Bad politics. I love Puerto Rico! — Donald J. Trump (@realDonaldTrump) September 13, 2018

Cruz, who has been among Trump's most outspoken critics, issued a series of blistering tweets in response on Thursday morning, tearing into Trump as “delusional, paranoid and unhinged from any sense of reality.”

"Thousands of americans, our diaspora & latinos that came to PR to care for us and become advocates for our people deserve better than this," Cruz tweeted.

Thousands of americans, our diaspora & latinos that came to PR to care for us and become advocates for our people deserve better than this. pic.twitter.com/OPaPx6oo1d — Carmen Yulín Cruz (@CarmenYulinCruz) September 13, 2018

“Damn it: this is NOT about politics this was always about SAVING LIVES,” she added.

Damn it: this is NOT about politics this was always about SAVING LIVES. pic.twitter.com/SjwywKN3Jh — Carmen Yulín Cruz (@CarmenYulinCruz) September 13, 2018

The mayor also shared a video from an interview last week in which she derides the Trump administration's response to Hurricane Maria.

Puerto Rican officials late last month increased the death toll as a result of the 2017 storm to 2,975 after a study by George Washington University that assessed the aftermath of the hurricane found the number was significantly higher than the 64 deaths that had originally been reported.

Cruz, Democrats and other Puerto Rican officials have been sharply critical of the Trump administration's response to the hurricane on the island, arguing that it stalled recovery efforts and led to additional deaths.

Trump has remained unflinchingly positive about the government's handling of the hurricane, however, giving himself a "10" and declaring it an "incredible, unsung success."

The president's remarks on Thursday came as Hurricane Florence barreled toward the mid-Atlantic coast.