A young girl who was grabbed while riding her bike in Canberra is the most recent case being investigated by a new police taskforce, set up to investigate more than a dozen child approaches in the city's suburbs since the start of the year.

Key points: Police set up taskforce after 14 children approached

Police set up taskforce after 14 children approached Two children made reports yesterday

Two children made reports yesterday Parents urged to remind children of "stranger danger"

Earlier this week the ABC revealed police had launched a centralised investigation into what was then 12 child approaches across the ACT.

On Thursday two more children reported being targeted.

A girl in Wright was grabbed by a man and pushed to the ground while she rode her bike on James McAuley Crescent in Wright about 5:10pm.

About an hour earlier in the southern suburb of Banks, a child reported being followed by a car.

Another incident in Queanbeyan two weeks ago bears several similarities to the approaches in Canberra.

Detective Superintendent Scott Moller said there would now be dedicated ACT Policing resources under the banner of Taskforce Tydeus to catch the person or people behind the approaches.

"Over these 14 incidents, we've had the children approached. Some of the children have been spoken to, some have been touched," he said.

"We're unsure of the motive, but bringing this taskforce together will determine what the motive was and the investigation strategies for us."

He said it was unclear whether the two most recent incidents were linked.

"At this point in time there is no evidence to suggest that these two incidents are linked, however these incidents are only recent, and the investigation is evolving," he said.

Police are expected to release computer generated images of the suspects in the most recent approaches.

"Due to the victims that we're dealing with, the age of the victims, it is difficult to identify particular features," Detective Moller said.

Police are urging parents and community members to remind children of "stranger danger", and to report suspicious activity.