Officials at the Islamic centre deny anyone has been recruited for al-Shabab at their mosque
US-Somalis in Minnesota have condemned the Nairobi shopping centre attack, after Kenyan officials said one or two of the suspected al-Shabab militants involved were from the US state.
In the city of Minneapolis, mosque leaders said such violence had nothing to do with Islam.
Minnesota is thought to be home to about 70,000 people of Somali origin.
The FBI says at least 20 young men from the US state have gone to Somalia since 2007 to join al-Shabab.