VIDEO - The Israel Defense Forces this week thwarted an attempt by three Palestinian gunmen to plant roadside bombs near the Erez crossing at the northern border of the Gaza Strip to target army patrols in the area, the army said Tuesday. The terrorists were identified by members of the field intelligence unit who relayed the information to soldiers of the Givati brigade, who opened fire killing all three. Despite a mediated ceasefire between Israel and Palestinian armed groups in the Gaza Strip nearly two months ago, the army maintains a high level of alert around the costal territory for fear of possible attacks. Beyond the over 100 rockets fired at Israel since the ceasefire, the army reports shooting attacks against army posts along the border almost on a daily basis and on one occasion an anti-tank rocket was fired at a force along the border. On January 2, an Israeli man was lightly injured in mortar shell attack at the Karni Crossing. The army also said that a number of Palestinians were injured by IDF fire upon approaching the security fence on the border with the Gaza Strip. The army said that since the ceasefire, ten explosives devices were found buried in the ground near the border to target Israeli patrols. Another worry for the IDF is the location of tunnels dug underground by Palestinian terror groups to either smuggle arms from Egypt into Gaza or wage attacks against Israeli soldiers. Although the political echelon gave the IDF the green light to act against gunmen who pose an immediate security threat, officers are extra vigilant in ordering military attacks for fear of igniting a full-scale confrontation with armed groups in Gaza.