Volkswagen de Mexico S.A. de C.V. has been forced to suspend production at its assembly plant in Puebla, Mexico, following bombings yesterday at state-owned oil company Pemex, Reuters reports.

Media reports say Nissan Mexicana S.A. de C.V. also canceled the first shift yesterday at its plant in Aguascalientes due to the explosions. However, Nissan spokesmen contacted by Ward’s were unable to confirm the reports.

The bombings blew holes in several pipelines in the state of Veracruz, disrupting the flow of natural gas to portions of the country.

VW says it plans to cancel production for the entire week.

“Due to the absence of natural gas supplies, as a consequence of the incidents of yesterday in the state of Veracruz, the plant’s manufacturing operations were stopped after the third shift Monday,” VW says in a statement. “Company and union representatives agreed to continue this suspension until next Monday, Sept. 17, or before, if the supply of (natural) gas is re-established.”

The bombings were the second such attack in two months. Mexican media reports say a leftist group is responsible.