JENIN (Ma'an) -- A mentally ill prisoner was released by Israeli authorities at a checkpoint near Hebron on Tuesday and is now missing, his relatives said.

Israeli authorities released Mohammad Qabha, 26, at al-Shamaa checkpoint after he served 50 days in an Israeli jail, his relative Ahmad al-Sherif told Ma'an.

Qabha's sentence had been commuted from four months after his relatives submitted medical reports of his psychological problems to an Israeli judge, al-Sherif said.

He had been jailed after he was picked up inside Israel without a permit. He had previously been imprisoned for one year in an Israeli jail.

Prior to his arrest, Qabha often wandered the streets aimlessly, al-Sherif said. "He roamed the streets all day."

Qabha has not been seen since his release and his family urged people, particularly in the Hebron area, to help with their search.