Several videos circulating on social media purport to show Palestinian protesters being shot in the back or while praying by Israeli snipers.

In one of the videos, a demonstrator - identified by relatives as 19-year-old Abdelfattah Abdelnabi - is shot in the back while running away from the border separating the Gaza Strip and Israel, reports aljazeera.com.

The footage shows Abdelnabi and another Palestinian being just a few metres away from a small group of unarmed protesters. A loud shot rings out and Abdelnabi drops to the floor.

According to the Palestinian health ministry, Abdelnabi died from his wounds.

More than 100 snipers were deployed to the border for the planned demonstrations, according to Israeli media.

In another video, a worshipper was shot in his right leg while he was performing Asr, the afternoon prayer, near an Israeli border fence.

The group of Muslims praying next to him stopped their communal prayer before rushing to seek cover.

In a third video, an unarmed Palestinian girl was shot as she waved a Palestinian flag near the border. It was unclear what injuries she sustained.

Al Jazeera could not independently verify the videos.