BSF today said it has lodged a protest with Pakistan regarding a cross-border tunnel along the international border in RS Pura sector of Jammu district and passed on the evidence in this regard to them. Inspector General of BSF, Jammu Frontier, Rakesh Sharma informed media that they have asked them to take up an investigation into the matter. BSF had yesterday found the 30-meter-long well-constructed tunnel about 10 feet below the ground. This is the fourth tunnel found by the force in the region since 2012.