Johnny Depp's Attorney Claims Amber Heard Appeared 'Manic' and 'Irrational' During Deposition

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Johnny Depp and Amber Heard's legal battles have taken another turn.

In court papers filed Tuesday, Laura Wasser, Depp's attorney, accused Heard of refusing to go on the record to testify at a recent deposition.

According to court documents obtained by ET, Wasser claims that Heard appeared nearly two hours late for a court-ordered deposition regarding Heard's request for a permanent domestic violence restraining order against Depp. Wasser claims that instead of testifying, Heard sat with her lawyers and "paced in a separate room." Wasser described Heard as appearing "manic and irrational."

WATCH: Why Amber Heard Might Face an Uphill Battle in Obtaining Permanent Restraining Order Against Johnny Depp

Furthermore, Wasser claims that Heard has "repeatedly obstructed Johnny's efforts to obtain evidence of her claims."

"If one is to make an allegation as serious as domestic abuse, there must be factual evidence to prove those claims," the docs state. "Amber has repeatedly failed to provide such evidence."

A source close to Heard tells ET that the actress sat for "10 hours through intense settlement negotiations, which could not be settled because it required a gag order."

Our source adds that Heard did not scream or cry and that she has medical records as proof of abuse.

WATCH: Amber Heard's Friend Recounts the Alleged Abuse That Led to Him Calling 911 on Johnny Depp

Heard, 30, was granted a temporary restraining order against Depp on May 27, after alleging that Depp was both emotionally and physically abusive towards her throughout their relationship. Wasser has responded to Heard's allegations, claiming that Heard is "attempting to secure a premature financial resolution by alleging abuse."

The case, which is could take several days, is expected to commence on Aug. 17.

RELATED: Johnny Depp's Ex Vanessa Paradis Added to Witness List in Domestic Violence Restraining Order Case

Depp's ex, Vanessa Paradis is among the 23 witnesses that Wasser will call upon to support the 53-year-old actor's claim that he did not physically abuse Heard during their time together.

Heard's seven-strong witness list, includes friends Elizabeth Marz and Rachel Pennington, as well as Pennington's fiancé, Joshua Drew. The trio were supposedly in Depp and Heard's apartment building on the night of the alleged attack.