NEW DELHI: Lok Sabha Speaker Om Birla on Wednesday said that two men who jumped into House from the visitors gallery have been nabbed and necessary instructions have been given to Delhi Police in the matter. The Speaker told members after the House reconvened at 2 pm that a thorough investigation of the incident is being done. He said there is no need to worry about the smoke in the House during the incident. “A thorough investigation of the incident that took place during zero hour, is being done. Essential instructions have also been given to Delhi Police. In the primary investigation, it has been found that there is no need to worry about the smoke,” he said. “Both of them have been nabbed and the materials with them have also been seized. The two people outside the Parliament have also been arrested by Police,” he added.