The first two inmates facing lethal injection under Arkansas' unprecedented multiple execution plan are seeking a stay from the state Supreme Court.

Attorneys for Don Davis and Bruce Ward asked justices Wednesday to block their executions, scheduled for Monday, while the U.S. Supreme Court takes up a case concerning access to independent mental health experts by defendants. The U.S. high court is set to hold oral arguments in that case April 24, a week after the two are set to be put to death.

The inmates' attorneys say they were denied access to independent mental health experts in their cases.

The two men are among seven inmates Arkansas plans to put to death over a 10-day period. The filing is among a flurry of lawsuits aimed at halting the executions.