Complex sentence: The task was complicated by the presence of a large number of civilians however, and many were found hiding in shelters and tunnels and they had to be coaxed out of hiding by the Australians and transported to a refugee camp which had been established nearby.
Split into simpler sentences: The task was complicated by the presence of a large number of civilians however, and many were found hiding in shelters and tunnels. They had to be coaxed out of hiding by the Australians and transported to a refugee camp which had been established nearby.