GANDHINAGAR (Agencies) - Six Pakistanis were held and their fishing boat seized when they trespassed into Indian territorial waters in the Sir Creek area of Kutch Monday, Indian officials said. The fishing boat was challenged by Border Security Force (BSF) personnel patrolling the area and tried to flee, but was chased and overcome, sources said. When the BSF personnel opened fire, the fishermen on the boat surrendered. They have been taken in for interrogation, official sources said. The Sir Creek is a strip of water in the Rann of Kutch marshlands which is the subject of a boundary dispute with Pakistan. The creek, which opens up into the Arabian Sea, divides the Kutch region of the Indias Gujarat state with the Sindh province of Pakistan. The creek itself is located in the uninhabited marshlands.