FRANKFURT, April 8 (Reuters) – Hapag-Lloyd voiced cautious optimism on Wednesday on the prospect of ‌resuming shipping through the Strait of Hormuz ‌after a two-week ceasefire agreed between the U.S. and Iran, ​but said that resuming normal traffic throughout its network would take at least 6-8 weeks.

Speaking in a call to customers, CEO Rolf Habben Jansen echoed ‌guarded remarks by ⁠peer container shipping group Maersk, saying that more security assurances were needed. “Even if ⁠a ceasefire has now been agreed overnight, I would say that it’s fair to say that ​the conflict ​in the Middle ​East is still severely ‌disrupting shipping, but also supply chains,” the Hapag CEO said, adding that the situation was “fluid”.

He estimated additional costs from the Middle East crisis at $50 million to $60 million a week and warned that ‌the German company would have ​to pass on some of ​that to its ​customers. That was up from $40-$50 million ‌stated previously.

He added that ​about 1,000 ships ​were still stuck in the region, six of which from his company with a ​combined capacity of ‌about 25,000 standard containers.

(Reporting by Ludwig Burger ​and Elke Ahlswede, Writing by Miranda Murray, ​Editing by Madeline Chambers)