South Korean president Park Geun-hye's lawyers have appeared in court to explain her actions during the aftermath of the Sewol sinking.

The ferry went down in 2014, killing more than 300 people, many of whom were schoolchildren.

Park has recently come under criticism for her handling of the tragedy, and denied claims her response was delayed because she was having her hair done.

Evidence detailing her whereabouts on the day was presented to the Constitutional Court on Tuesday, the Yonhap news agency said.

Park was impeached by parliament last month over a corruption scandal and allegations that she neglected her duty during the sinking.

Her lawyer Lee Joong-hwan told reporters: "(Park) received numerous phone calls from the chief of the National Security Office and gave orders. She took appropriate steps.”

He added she studied various government reports from her office because she had no scheduled public activities and wasn't feeling well.

She made her first phone call to the National Security Office 15 minutes after hearing of the sinking and followed this up seven minutes later.

The file from her lawyers reportedly included the time and duration of the hairdo.

But Justice Lee Jin-sung said the report fell short of the court's expectations.

"What the Constitutional Court asked for was an explanation of the president's whereabouts based on her own memory," he said. "The report mainly lists what the president claims were reports she received and orders given on the day of the tragedy."