Israeli authorities say they have prevented a bomb attack near the settlement of Ariel in the occupied West Bank.

Micky Rosenfeld, a spokesman for the Israeli police, said a Palestinian man wearing explosives had been arrested at the Tapuach junction. 

Israeli forces saw the man was wearing a coat on an exceptionally hot day, the Reuters news agency reported.

In a message on the Twitter social networking site, Rosenfeld said police had arrested an unspecified number of Palestinians in connection with the attempted attack.

Those arrested were believed to be in their 20s and from the West Bank city of Nablus, north of where the incident happened.

Israeli police have disarmed the explosives and closed roads leading to the site of the incident.

Al Jazeera's Rania Zabaneh, reporting from the occupied West Bank, said there was tight security at checkpoints but such arrests were a regular occurrence in the area.

The last bomb attack against Israel was in Tel Aviv in November 2012, when 21 people on a bus were wounded.

Source: Al Jazeera and agencies