Japan's PM leaves Sydney after talks

The 7th set of discussions between Malcolm Turnbull and Shinzo Abe were focused on trade and regional security, with both leaders pledging further co-operation.

Japanese PM Shinzo Abe will depart Sydney on Sunday morning after holding trade and security talks. (AAP)

Japanese Prime Minister Shinzo Abe has left Sydney after holding trade and security talks with Malcolm Turnbull.

Mr Abe, who last visited Australia in July 2014, met the prime minister at Kirribilli House on Saturday to discuss trade security and to touch on the implications of the Trump presidency in the US.

During a media conference in the gardens afterwards both spoke of their desire for "enhanced co-ordination" on issues including activity in the South China Sea and the nuclear threat posed by North Korea.

The seventh set of discussions between Mr Turnbull and Mr Abe were also focused on trade, and come on the second anniversary of of the Japan-Australia Economic Partnership Agreement.

The leaders were keen for co-operation with the incoming Trump administration but would also continue work on the TPP, which US President-elect Trump has vowed to ditch.

Mr Turnbull said the meeting reinforced the Australia-Japan relationship as a very special strategic partnership between "all-weather friends".

Mr Abe and wife Akie departed Sydney on Sunday morning to continue a tour of the Philippines, Indonesia and Vietnam.