Police arrest four people, including a schoolboy, from different areas in Ishwarganj upazila in last two days for their suspected link to Middle East-based militant outfit Islamic State (IS).

Kayla Mueller, who was killed in February while held hostage by Islamic State (IS) militants in Syria, was sexually abused by the group's top leader.

The UN Security Council has demanded humanitarian access to the Palestinian refugee camp of Yarmouk in Damascus.