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LONDON (CBSMiami) — The parents of a baby with a rare disease returned to court in London, hoping for a fresh analysis of their wish to take the critically ill child to the United States for medical treatment.

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Charlie Gard has a genetic condition and has brain damage.

During a hearing on Thursday,  his parents stormed out of the hearing when the judge suggested their argument has not been consistent throughout, according to CBS News.

The 11-month old’s father – Chris Gard – punched a table while his wife said, “We said he’s not in suffering and in pain. If he was we wouldn’t be up here fighting for that.”

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The court adjourned and went on lunch break but returned for proceedings later.

Related: Britain’s High Court Delays Decision On Charlie Gard’s Fate

Great Ormond Street Hospital says experimental treatment in America won’t help and may cause the child to suffer. The hospital believes his life support systems should be turned off.

“We will continue to make the case for us to seek treatment for Charlie with doctors that are actually specialized in mitochondrial DNA depletion syndrome and we hope that the judge and the courts will finally rule in favor of us seeking treatment elsewhere,” Charlie’s parents said in a statement read by family spokesman Alasdair Seton-Marsden before the hearing.

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Judge Nicholas Francis, who ruled in favor of doctors in April, says he would consider any new evidence.