Pakistani police have arrested six men suspected of planning to carry out suicide bomb attacks.
The arrests came days after al-Qaeda carried out a suicide car bomb attack on the Danish embassy that killed six people, all of them Pakistani.
'We have arrested suspected suicide bombers,' said Rao Iqbal police chief of Rawalpindi, the city where Pakistan's army is headquartered, and neighbouring the capital Islamabad.
Mr Iqbal said earlier that three vehicles packed with explosives had been recovered in Rawalpindi and some people arrested late on Thursday in a congested neighbourhood in the city.
Security forces placed the two cities on red alert following the discovery of the explosives, which amounted to nearly 500kg in total between the three cars.
Al-Qaeda claimed in purported Internet statements Wednesday to have carried out the attack on the Danish mission in revenge for the publication in Danish newspapers of cartoons insulting the Prophet Mohammed.
A Danish team has arrived in Pakistan to work with agents investigating the attack on its embassy in Islamabad.
