Nico Rosberg says Pirelli needs to address the issue of safety with its tyres after he and Sebastian Vettel suffered scary blowouts within the space of three days in Belgium.

Rosberg spun out of FP2 after his right rear tyre exploded, something Pirelli put down to an "external cut" possibly caused by bodywork from the Mercedes. Replays showed damage to Rosberg's tyre had started down the Kemmel Straight, almost exactly where Vettel's right rear tyre exploded on the penultimate lap of Sunday's grand prix.

Both men were lucky to avoid big shunts following their respective tyre failures, with Vettel's coming apart the corner after the flat-out Eau Rouge section. Following Vettel's angry tirade at the manufacturer Pirelli insisted the two were unrelated, but Rosberg thinks the events of Belgium should serve as a wake-up call about tyre safety.

"Vettel exploding his tyre, it's really poor, that's not allowed to happen," Rosberg said. "It shouldn't happen and that it keeps on happening in other categories as well, and then today with Vettel and with me on Friday. Both of us were just so lucky, you know if it happens a couple of metres later or earlier, we'll have one of the biggest shunts ever. So they need to try and figure something out - how to make it safer, I don't know."

After his FP2 tyre damage went undetected by Mercedes for almost an entire lap until the moment of failure Rosberg thinks TV cameras could be utilised to improve safety.

"For example, we have those rear-view cameras, at least make that for live viewing for everybody and all the team so that they can keep an eye on it or something. Because with me you could see the tyre breaking half a lap early, so if we would have had the camera they could have slowed me down and it would have been fine. I don't know, that's just some stupid idea, but anything, something needs to be done to improve it.

"It needs to be sorted out, this issue, somehow we have to make it safer. Somehow maybe we need to be able to see the tyre failing earlier - at least that, if they're not able to completely solve the problem within the next couple of weeks. And it's Monza [next], again it's high speed, we need to have something in place for that."