The European Union will create its first one-stop-shop alert system to help police crack down on child pornography on the Internet, the bloc's executive body said.

"The platform will help cybercrime investigators in EU member states share information more effectively and avoid the duplication of their efforts to fight child pornography," the European Commission said in a statement.

The Commission will give the European police office Europol 300,000 euros to set up the system, which for the first time will let all EU states track child pornography investigations taking place anywhere in the bloc and coordinate probes more effectively.

"Child pornography represents today more than half of all offences committed on the Internet," the Commission said, pointing out that Internet child pornography networks were often international, requiring cooperation among EU states.

On Wednesday, EU lawmakers agreed to allocate 55 million euros for a 2009-2013 "Safer Internet" plan to improve safety for children surfing the Web, promote public awareness and create national centres for reporting illegal online content.