Security officers patrol the area near to the site where gunmen abducted German archaeologists professor Peter Breunig and his associate Johannes Behringer in Janjala Village, Nigeria. Friday, Feb. 24, 2017. Kidnappers are demanding a ransom of 60 million naira (about Dlrs 200,000 US) for the two captives abducted this week from Janjala village in northern Nigeria, the excavation site where the German archaeologists was working. Two villagers were shot and killed in the kidnapping, police confirmed Friday. (AP Photo/Lekan Oyekanmi )

Security officers patrol the area near to the site where gunmen abducted German archaeologists professor Peter Breunig and his associate Johannes Behringer in Janjala Village, Nigeria. Friday, Feb. 24, 2017. Kidnappers are demanding a ransom of 60 million naira (about Dlrs 200,000 US) for the two captives abducted this week from Janjala village in northern Nigeria, the excavation site where the German archaeologists was working. Two villagers were shot and killed in the kidnapping, police confirmed Friday. (AP Photo/Lekan Oyekanmi )

KADUNA, Nigeria (AP) — Nigerian security agents have freed two German archaeologists kidnapped by gunmen at a remote dig, the governor of northern Kaduna state said Sunday.

The two academics are now at the German embassy in Abuja and are doing well considering the circumstances, according to the German Foreign Ministry.

Governo Nasir Ahmad El-Rufai “commended the security agencies for their efforts in securing the release of the Germans,” said a statement. It did it say whether anyone has been arrested for the kidnapping.

Gunmen had been demanding a ransom of 60 million naira (about $200,000) for the release of Professor Peter Breunig and his assistant, Johannes Behringer. The two were abducted at gunpoint Wednesday and walked into the bush from an archaeological dig near Jenjela village in Kaduna state. Two villagers who tried to help the Germans were shot and killed by the kidnappers, the police said.

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Breunig, 65, and Behringer, in his 20s, are part of a four-person team from Frankfurt’s Goethe University. The other two members, women, were not touched by the kidnappers. The Germans were collaborating with Nigeria’s National Commission for Museum and Monuments to recover relics of the Nok culture. The early Iron Age people, considered the earliest ancient civilization of the West African region that is now Nigeria, are famous for their terracotta sculptures.

Kidnappings for ransom are common in Nigeria, with ordinary residents and even schoolchildren targeted as well as foreigners. Victims usually are freed unharmed after a ransom is paid, though security forces have rescued a few high-profile abductees.

Nigeria’s acting President Yemi Osinbajo had summoned the federal police chief on Thursday for a briefing on efforts to find the Germans.

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Geir Moulson in Berlin contributed to this story.