The bomb of the Soviet times was found during repair work in the area of Prenzlauer Berg, Berlin.
The Yevropeyska Pravda reports this with reference to the Berlin police message on Twitter.
The territories near the bomb were surrounded by the police cordon. The police evacuated thousands of residents within a radius of 1,000 meters.
"Found a Russian bomb that must be defused in place by our specialists", reads the police report.
The BZ-Berlin agency reported that the nursing home was evacuated. In addition, the traffic was blocked in several public transport lines.
According to preliminary data, the weight of the bomb is up to 100 kilograms.