This diver was sent from Guangzhou to investigate the cause, image courtesy of Nanfang Daily

We told you in August that Dongguan was set to rebuild 16 of its bridges. Now it appears it that it’s not the only city in the Pearl River Delta that needs to take a look at the safety of its bridges.

On Monday night (October 7), a couple drove a van drove across a bridge in Huidong County in Huizhou. It was dark, and they didn’t know the bridge had collapsed earlier in the day. As they were driving across, they hit a precipice and plunged 20 metres where the bridge had collapsed, Nanfang Daily reports.

The driver and passenger had to swim to the bank and were taken to hospital after emergency services were called.  Both are in a stable condition.

Now authorities are trying to figure out why the bridge had collapsed, and perhaps more importantly, how it could’ve been collapsed for so long without anybody securing the area.