Upon arrival, Scholz condemned the Iranian strikes on Israel
Riyadh and Washington urged Western governments on Thursday to repatriate citizens who joined the Daesh group in Iraq and Syria, where thousands still languish in prisons or camps.
Saudi Foreign Minister Prince Faisal bin Farhan said it was "disheartening and absolutely unacceptable" that some wealthy countries had not brought their nationals home.
"To those countries, you must step up, you must take your responsibility," he told a meeting of the international anti-Daesh coalition that was attended by US Secretary of State Antony Blinken.
The "caliphate", which Daesh proclaimed across swathes of Iraq and Syria in 2014, was declared defeated in 2019 following counter-offensives in both Iraq and Syria.
Thousands of militants and their family members continue to be held in detention centres and informal camps where US commanders have warned they could fuel a Daesh revival.
Despite repeated calls for their repatriation, foreign governments have allowed only a trickle to return home, fearing security threats and domestic political backlash.
Blinken applauded countries, including Canada, that have brought home their nationals from Syria, urging other nations to follow suit.
"Repatriation is critical" to reduce populations of large informal camps such as Syria's Al Hol, which houses 10,000 foreigners, including Daesh relatives, he said.
"Failure to repatriate foreign fighters risks that they may again take up arms," he told coalition partners, pledging $148.7 million for stabilisation efforts for Iraq and Syria.
The anti-IS coalition was formed in 2014 following the militants' lightning advance that saw reports of atrocities multiply as they overran non-Muslim as well as Muslim areas.
Despite its territorial defeat, Daesh militants continue to conduct attacks against civilians and security forces in both Iraq and Syria.
The United Nations estimates that Daesh still has 5,000 to 7,000 loyalists across the two countries, roughly half of whom are fighters.
In April, the US-led coalition reported a significant drop in Daesh attacks in both Iraq and Syria since the start of the year.
Daesh attacks in Iraq dropped by 68 percent through April, while Syria saw a 55 per cent decrease during the same period, the coalition said.
Upon arrival, Scholz condemned the Iranian strikes on Israel
Police have named the assailant as 40-year-old itinerant man Joel Cauchi
Family expresses condolences to the victims
The airline has already suspended flights to and from Tehran until April 18
All flights at Egyptian airports are according to the usual schedules, except for some flights heading to countries that have closed their airspace, said the govt
Air India and Vistara have announced avoidance of Iranian airspace and are taking longer flight paths for their Europe and US operations
Israel has a multi-layered air defence system that has intercepted thousands of rockets since it first went into operation in 2011
Police said there was no evidence to suggest Joel Cauchi was 'driven by any particular motivation, ideology or otherwise'