News of the surrender was conveyed to the positions that still held out, mainly the South Dublin Union, Jacob's Biscuit factory, the Royal College of Surgeons and Boland's Bakery, all of which surrendered reluctantly. The police and military turned their attention to rounding up those suspected of being directly or indirectly involved in the Rising, a total of approximately 3,500 being arrested throughout the country, of whom about 2,000 were interned.