So far 261 motorists in Wales have been fined for using mobiles

The two-week campaign follows a survey which shows that some motorists are still flouting the law, three months after the ban was introduced.

Superintendent Graham Lloyd of South Wales Police said driving while using a mobile had reached "epidemic proportions."

He said motorists should remember that it was a "highly dangerous activity."

Any driver seen using a mobile phone will face a �30 fine, although in more serious cases, motorists could be reported for driving without due care and attention.

Lorry drivers and bus drivers could face fines of up to �2,500.

Dangerous distractions

After an initial period of grace when the ban came into force on 1 December 2003, motorists started getting caught by police.

However, the number of drivers who have been caught so far has varied across different force areas, according to a survey by BBC Five Live.

MOBILE FINES BY POLICE FORCE South Wales 199 fixed penalties North Wales 36 fixed penalties Gwent Police 10 fixed penalties Dyfed-Powys Police 16 fixed penalties

South Wales Police has issued 199 fixed penalty notices, which each carry the �30 fine, as well as three to motorists supervising learner drivers.

North Wales Police has so far issued fixed penalty notices to 36 motorists.

But only 10 drivers have been fined in Gwent. That puts the force at the bottom of the survey. Dyfed-Powys Police has issued 16 fixed penalty notices.

Road safety campaigners say there have been 20 deaths in Britain due to mobile phone use.

Superintendent Lloyd said his advice to motorists was to ensure phones were switched off to avoid any dangerous distractions.

"Drivers should be aware that no call is as urgent as that of risking someone's life," he said.

Meanwhile, a survey by the breakdown assistance group Green Flag found that 10% of motorists still use mobile hand-sets.

More than 75% agreed using a phone severely impaired their ability to drive safely.

Some 64% of drivers said they never used their hand-held mobile phone while driving and over a quarter of respondents said they had made a conscious effort to use a hands-free kit since the ban.