>> A car is driven up to a courthouse in Northern Ireland's Londonderry. Someone runs away, and less than an hour later,
CCTV captured the moment of Saturday evening's car bomb attack.>> Fortunately, it didn't kill anybody and, fortunately, it didn't cause widespread damage. But clearly, it was a very significant attempt to kill people here in this community last night.>> However, on Monday, police also cordoned off two areas in the Northern Ireland city to examine two further vehicles.
A large bang and black smoke was seen from the first vehicle after an army bomb disposal robot was sent in. Police evacuated homes near the second vehicle. And photographs tweeted by local reporters showed a mail delivery van in the middle of an empty road. All vehicles used in Saturday's and Monday's incidents had been hijacked, police said.
But they told local media that it's too early to say if the incidents are linked. The main focus of the car bombing investigation is the new IRA. It's one of a small number of groups opposed to a 1998 peace deal that largely ended nearly three decades of violence in the British-run province.
The new IRA has carried out sporadic attacks in recent years. And officers previously said they see Saturday's attack as a continuation of the militants' campaign rather than an escalation. But it comes at a time when police in Northern Ireland and European member islands have warned that a return to a hot border between the two after Brexit could create a target for such groups.
A number of people have been detained by police investigating the bombings.