Winston Peters says the Government's providing the best possible advice to New Zealanders in Iran and Israel. 

This afternoon, the Foreign Affairs Minister called the escalation of tension in the Middle East the most 'uncertain' geopolitical circumstances he's ever seen. 

At last count, there are 50 Kiwis registered as being in Iran, and 80 in Israel. 

Peters says leaving could be challenging, given that airports are closed. 

"It's the evolving and possibly worsening situation that will make people's minds up - all we can do is give them the best advice possible, on an hourly basis sometimes." 

LISTEN ABOVE