Police investigating Jean McConville's murder have arrested a 56-year-old man.
The Belfast mother of 10 was abducted, killed and secretly buried by the IRA in 1972.
The 56-year-old man presented himself at Antrim Police Station.
He had been arrested last month, but his interview was stopped on medical grounds.
A number of people, including Sinn Féin leader Gerry Adams, have recently been arrested over the murder - Mr Adams was released without charge.
