IDF soldiers arrested a Palestinian in Hebron, the IDF Spokesperson's Unit said Saturday morning.A search revealed the suspect was carrying a knife in his clothes. He was transferred for further investigation by the police.A 19-year-old Palestinian Hebron resident was arrested in similar circumstances on Friday. The suspect attempted to enter the Cave of the Patriarchs, a holy site to both Jews and Muslims, with a knife concealed in his sleeve. The suspect was subsequently arrested and taken for questioning.Friday also saw a bloody atack in Jerusalem, which left a 47-year-old man fighting for his life and a 16-year-old boy moderately-to-seriously wounded.A "terrorist stabbed one person at Damascus Gate, critically injuring him, and made his way into the Old City and stabbed a second person inside injuring him moderately," Israel Police spokesman Superintendent Micky Rosenfeld told The Jerusalem Post.Violence was also seen along the Gaza border as several Palestinians were injured when thousands of Gazans took part in the Great Return Marches, on Friday. Ilanit Chernick, Tamar Beeri and Anna Ahronheim contributed to this report.