Prime Minister Lee Hsien Loong has written a congratulatory letter to Prime Minister-elect of New Zealand Jacinda Ardern, the Ministry of Foreign Affairs said yesterday.

Mr Lee warmly congratulated Ms Ardern on her appointment and expressed confidence that she will provide the strong leadership needed to steer New Zealand through challenging times ahead.

"Singapore and New Zealand share excellent bilateral relations, underpinned by shared strategic perspectives. We enjoy multifaceted cooperation in the political, economic, defence, science and technology, as well as people-to-people spheres. Singapore is also grateful for New Zealand's generous support for the Singapore Armed Forces' training in Waiouru," Mr Lee said.

"I am pleased to note that Singapore and New Zealand have embarked on negotiations for an Enhanced Partnership earlier this year. This paves the way for us to broaden and deepen our cooperation, and solidify our longstanding partnership. Amid a challenging global climate, it is important for like-minded friends to strengthen their ties. I look forward to your support for the Enhanced Partnership, and hope to work closely with you to further enhance our bilateral ties in the coming years.

"I wish you and your government every success, and would like to invite you to make an official visit to Singapore," Mr Lee said.