Australian counter-terrorism police raided two homes in New South Wales connected to the man accused of the Christchurch mass shootings.
The home of Brenton Tarrant's sister in Sandy Beach, near Coffs Harbour, was raided about 8.30am local time on Monday.
The counter-terrorism officials then stormed a second house at Lawrence, near Maclean, north of Coffs Harbour.
"The primary aim of the activity is to formally obtain material that may assist New Zealand Police in their ongoing investigation," the Australian Federal Police and NSW Police said in a joint statement.
Officers also re-iterated to local media the fact that Tarrant's family continue to assist police with their inquiries.