Lebanese media is quoting the interior minister as saying that "preliminary information" suggests that the militant Islamic State group was behind a suicide bombing in the northern city of Tripoli that killed nine people.

They quoted Nouhad Machnouk as telling reporters after a security meeting on Sunday that "preliminary information indicates that (the Islamic State) is behind the explosion."

The suicide bomber struck a coffee shop in Tripoli's predominantly Alawite neighborhood of Jabal Mohsen, killing nine people and wounding over 30 on Saturday evening.

Syria's al-Qaida-linked Nusra Front initially claimed responsibility on Twitter for the blast.

Lebanon has seen a series of attacks and suicide bombings since the conflict in Syria, which has killed more than 200,000 people, began nearly four years ago.