Many of the dead and injured in Bahrain's protests are school students, he added.
In the Israel-Palestinian conflict, a 16-year-old boy died this week from injuries sustained when a rocket fired from Gaza hit a school bus. At least eight children have been killed in Gaza, Lake reported.
"UNICEF is greatly concerned about the effects of violence on children caught in escalating conflicts in the Middle East and North Africa," Lake said in a statement.
"We continue to condemn the targeting of civilians by armed groups, and call on all parties to provide humanitarian aid workers with immediate access to all areas and children in need."
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In the Israel-Palestinian conflict, a 16-year-old boy died this week from injuries sustained when a rocket fired from Gaza hit a school bus. At least eight children have been killed in Gaza, Lake reported.
"UNICEF is greatly concerned about the effects of violence on children caught in escalating conflicts in the Middle East and North Africa," Lake said in a statement.
"We continue to condemn the targeting of civilians by armed groups, and call on all parties to provide humanitarian aid workers with immediate access to all areas and children in need."
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