A German national suspected of involvement in the deadly Nairobi blasts last month was arrested in neighbouring Tanzania, police in that country told the BBC.
Kenyan police say Emrah Erdogan, a German of Turkish origin, had been in Somalia fighting with the Islamist al-Shabab before he crossed into Kenya in early May.
The explosive attacks occurred during a busy hour at a shopping complex on Moi Avenue in Nairobi, close to the Mt. Kenya University campus. At least 30 people were injured in the blasts.
They suspected militant group al-shabab to be behind the attack as the Somali terrorist group has long threatened revenge attacks after Kenya sent troops into Somalia last year.
Erdogan is among four people Kenyan police have been trailing since the attack, the BBC wrote.
His photograph had been released to the press soon after the attacks with appeal for information leading to his arrest.
Reuters reports and the BBC cites that “Mr Erdogan, also known as Salahuddin al-Kurdi, is believed to have travelled to Waziristan in north-west Pakistan in early 2010 where he joined a militant Islamist group before going to Somalia last year”.