The Dewan Negara sitting tomorrow should urgently debate fresh claims by the Philippines on Sabah, said senator Adrian Lasimbang.

In his notice sent to Dewan Negara speaker Rais Yatim's office on Friday under Standing Order 7(1), Adrian described the Philippines House Committee on Foreign Affairs' suggestion to incorporate Sabah's map on its passport cover as a "provocative" act that threatens the sovereignty of Sabah and Malaysia.