Police in Scotland arrested a 30-year-old man Tuesday on suspicion of aiding a suicide bomber who targeted Christmas shoppers in Stockholm in December.
Strathclyde Police said the suspect, who is not British, was detained just after 6 a.m. in Glasgow as part of an "intelligence-led" operation into the Swedish attack.
Taimour Abdulwahab, an Iraqi-born Swede who went to university in Britain, killed himself and injured two others when explosives he was wearing exploded in a busy shopping street.
Police said the suspect arrested on Tuesday posed no direct threat to Scotland.
Sweden's security police said the arrest was the result of joint work between officials in Scotland and Sweden.
It said "the investigation, so far, shows that there could be a link between the arrested person and the terrorism act in Stockholm on Dec. 11."
Officials have said they suspected Abdulwahab had accomplices.