A security source on Sunday said a dispute had preceded the shooting incident in Nablus in which one Israeli was killed and several more were injured.
The argument involved the PA policeman who opened fire and the group of worshipers who arrived at the site.
The source said the Israeli worshipers arrived at the tomb without coordinating their visit with the IDF, as is standard request, and without army protection.
The PA policeman is being interrogated by Palestinian security officers at the time. The IDF is in touch with Palestinian security forces. and is waiting to hear more details about the incident.
The shooting took place in an area of Palestinian Authority security jurisdiction.