The boat was spotted Wednesday afternoon by an Australian border protection plane on a routine patrol 60 nautical miles north of Ashmore Island
in the Indian Ocean, with a number of people in the water.
News of the arrest came after Australian authorities said they intercepted another boat carrying more than 30 suspected asylum seekers, the 33rd vessel this year, off Ashmore Island
late on Sunday.
The two vessels were near Ashmore Island
, off the coast of northwest Australia, and had about 56 and 52 passengers, respectively.
Immigration Minister Philip Ruddock said up to 400 more were expected at Christmas Island and the even tinier Ashmore Island
The alert comes as more than 600 boat people travel toward the tiny Pacific island of Nauru aboard Australian navy ship HMAS Manoora and another 259 await their fate on Ashmore Island
, 200 miles off the northwest coast.
Defense Minister Peter Reith released the Navy's official record of the rescue, which occurred Thursday in the vicinity of Ashmore Island
off Australia's northwest coast.
The other 13 were from a separate group of 237 mainly Iraqi people intercepted by the Manoora near Ashmore Island
off northern Australia earlier this month.
Over the weekend, another Indonesian vessel carrying 237 asylum seekers to Ashmore Island
off Australia's north coast was intercepted by the Australian navy, and those on board were also transferred to the Manoora, which was traveling through the area.
Thursday's group was exceeded in size only by a boat carrying 353 people that arrived in November 1999 at Ashmore Island
, a tiny outcrop just 200 km south of Indonesia's West Timor.
The group had been on the Triton since last Friday when their asylum boat was intercepted at Ashmore Islands