At least 60 activists in the occupied West Bank, Gaza and Israel have started an open-ended hunger strike in support of Palestinians already fasting in Israeli jails against allegedly worsening conditions.

More than 200 prisoners have not eaten for the last 13 days. Talks on Monday will determine if this will become an enmasse strike including the 6,000 Palestinians in the 22 prisons in Israel and the West Bank.

They are protesting over what they say are "worsening conditions" in jails including continuous solitary confinement for some prisoners, the prevention of access to educational studies and new clothing, and the ban of visits from relatives.

Al Jazeera's Nicole Johnston reports from Gaza.