A powerful explosion blew out the entrance to a police station in the southern Swedish city of Helsingborg early Wednesday, an attack authorities linked to their fight against organized crime.

The EU unveiled on Wednesday plans to help redesign European public spaces to make it harder to carry out low-tech terror attacks like those in Barcelona and Nice.

The EU said Wednesday it is moving this week's leaders' summit out of its new 320-million-euro headquarters into a neighboring building after chemical fumes from the kitchen sickened several people.

Hundreds of peaceful Ukrainian protesters gathered on Wednesday in a tent camp outside parliament during a mass protest demanding a more forceful fight against government graft.

Portugal's Interior Minister Constanca Urbano de Sousa resigned Wednesday as criticism mounts over the government's handling of a series of deadly forest fires that killed more than 100 people in four months.

Suspected militants have kidnapped four British nationals in southern Nigeria, police and community leaders said on Wednesday.

The four had been providing "free medical care and religious activities" in the Burutu area of Delta state, said Chief Theo Fakama, from the local Enukorowa community.

Iran's supreme leader Ayatollah Ali Khamenei dismissed US President Donald Trump's aggressive criticism as the "rants and whoppers" of a "brute", in a speech on Wednesday. 

EU leaders meeting this week in Brussels are still unsure what Britain wants from Brexit, Irish premier Leo Varadkar said, as the European Parliament's president warned London's financial offer was "peanuts".

North Korea issued an unusually short congratulatory message to China's Communist Party Wednesday as President Xi Jinping opened its five-year congress amid strained ties between the two traditional allies.

France's parliament is set to pass a new controversial anti-terror law on Wednesday pushed by President Emmanuel Macron which has been criticised by rights groups.