GAZA, Sept 12 (Reuters/JMCC) - Israeli shelling killed three Palestinians in the Gaza Strip on Sunday, medical workers and witnesses said, after armed fighters in the Hamas-ruled territory fired rockets across the border.

Hamas security and medical officials said the three Palestinian dead were farmers from the town of Beit Hanoun near the Israel-Gaza border. Three other Palestinians were wounded, they said.

According to Israeli newspaper Yediot Ahronot, Palestinian witnesses identified two of the dead as 90-year old Ibrahim Abu-Asad and his 14-year old grandson Hussam Abu-Asad. Three other grandchildren were reportedly injured in the attack.

The shelling followed the firing of two rockets by militants in the Hamas-ruled Gaza Strip into Israel. No one was hurt.

An Israeli military spokesman said he was checking the reports.