Quetta, Pakistan: Pakistan police have arrested 11 Iranian Revolutionary Guard officers for illegally entering the country, amid tensions over a suicide attack that Tehran alleges was carried out by militants backed by Pakistani intelligence officials.

The 11 were taken into custody in Mashkel, close to the countries' shared border in the southwestern province of Baluchistan, police officer Dadur Raman said. He said officers were interrogating the men and had seized two vehicles.

Six Revolutionary Guard officers were among the 42 people killed October 18 by a suicide bomber on the Iranian side of the border near Pishin. Iranian officials blamed the Sunni rebel group known as Jundallah, or Soldiers of God, in the attack and accused elements of Pakistan's intelligence agency of supporting the group.

Pakistan has vowed to cooperate in capturing any attackers on its side of the border.