Berlin's Jewish Museum has been closed for the day and the area around it evacuated as authorities work to remove a World War II bomb found in the vicinity.

The 250 kilogram (550 pound) American bomb was unearthed during construction work in the German capital Friday.

The popular museum was closed Sunday as were portions of two subway lines as experts worked to defuse and remove it, and 11,000 residents were forced to evacuate their homes as a precaution.

World War II-era bombs are still commonly found in Germany's cities, even 70 years after the end of the conflict.

In the city Koblenz, another 5,000 people were evacuated for the removal of another 250 kilogram bomb, which was found four meters (yards) below ground during construction work at a school.