The hearing to determine the fate of terminally ill baby Charlie Gard continued Thursday, resulting in both of his parents storming out of the courtroom after disagreeing with the judge. Chris Gard and Connie Yates have been fighting desperately to take 11-month-old Charlie to the United States for experimental treatment that could save his life.

The fight has been long and difficult: Charlie was born in August and suffers from a rare genetic disease. A previous ruling said Charlie’s parents could not take him to the U.S. because the treatment might do more harm than good. Yates and Gard, however, said they have nothing to lose at this point.

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Thursday’s hearing was meant to determine whether the judge would reconsider the previous ruling. Yates and Gard were asked Monday to deliver new evidence regarding the effectiveness of the treatment Charlie would receive in the U.S.

At one point during the hearing, Judge Nicholas Francis said the parents had stated they would not want to extend Charlie’s life unless there was hope of improvement.

“I never said that!” Yates reportedly yelled at the judge.

Shortly after, Yates and Gard left the room.

It’s not the first time the situation has gotten heated: Yates had some choice words for a lawyer representing Great Ormond Street Hospital, where Charlie is being kept, in the preliminary hearing Monday.

“When are you going to start telling the truth?” she yelled, according to U.K. news outlet The Press Association.

Charlie suffers from mitochondrial depletion syndrome, a rare genetic disorder that has rendered him unable to breathe, eat or move on his own. After having tried numerous treatments in London, his parents wanted to give Charlie a final shot at life with experimental nucleoside therapy in the U.S.

Francis said it was unlikely the hearing would conclude Thursday but said he would consider any new evidence put forth.

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“If there is important new evidence that suggests my decision should be changed then I will change it,” he said.

“We are continuing to spend every moment working around the clock to save our dear baby, Charlie,” his parents said in a statement read by a family friend in court Thursday. “We’ve been requesting this specialized treatment since November and never asked the hospital, the courts or anyone for anything except for the permission to go. We love him more than life itself. If he still fighting, then we are still fighting.”