TAYMOUTH, N.B. - Police in New Brunswick are trying to determine who vandalized seismic testing equipment in an area north of Fredericton where activists opposed to shale gas development staged a peaceful protest Thursday.

RCMP confirm a group of protesters gathered along English Settlement Road in Taymouth.

However, RCMP Cpl. Yann Audoux declined to confirm reports suggesting the protesters had slowed trucks owned by SWN Resources Canada, an oil and gas exploration company.

He says the protesters did not block the roadway and they dispersed in the afternoon.

Earlier this month, hundreds of people concerned about shale gas development marched to the legislature in Fredericton.

They want a ban on a petroleum industry practice called hydraulic fracturing, which involves pumping a mixture of water and chemicals into the ground to release natural gas.