Three American bombs, each with impact fuses, were found during construction work on Monday in Deutz, a bustling area on the bank of the River Rhine.
A source involved in the search operation said the targeted area was "vast" with police using ground-penetrating radar across several hectares.
The Higher Regional Court of Stuttgart found the 33-year-old man guilty of leading a militia that carried out brutal attacks on Sunni Muslim civilians.
The search for traces of the child's body will focus on an area between Praia da Luz and one of the houses where Brueckner lived when McCann disappeared 18 years ago.
"We are examining this and, if necessary, we will authorize further arms deliveries based on this examination," Wadephul said.
The shift in tone is significant in a country whose leadership follows a policy of special responsibility for Israel due to its history.
Merz will tell Netanyahu "not to overdo it" in a call this week, though notes Germany will remain more guarded in its criticism than others for "historical reasons"
Everything inside the grave suggests prestige and cultural connections that exceeded local borders.
Sigrid Schultz was the historic figure branded “that dragon from Chicago” by Hermann Göring, Hitler’s number two man angered by Schultz’s fearless reporting about the Nazis.
During her time as a spy, she was able to provide the French military with information on German positions, contributing to several notable victories.