I don't know if this is the same, but they are Iranian:
One of the Iranian military's greatest threats are its self-propelled howitzers. The Shahid Industrial Complex manufactures two models of self-propelled howitzer, a 36 tonne 155mm, and a 17.5 tonne 122 mm. All parts of these weapon systems are locally produced using Iranian steel including their 850 horsepower diesel engines and their 8 gear transmissions. The 155 mm “Thunder 2” self-propelled howitzer has inch-thick welded steel armour requiring a near direct hit to destroy it. The Thunder 2 can travel at 65 kph with a range of 450 km and can fire four, several-pound, rocket-assist high explosive projectiles per minute to a distance of 30 km. The Thunder 2 is a knock-off of the American (United Defense Industries) M109 of which 440 were sold to the Shah, many still operational.
The Thunder 2 has been in quantity production for several years. The self-propelled fleet is supplemented by a large number of towed howitzers, both 155 mm and 122 mm, manufactured by Hadid Armament Industries Group. These weapons are towed into battle by 6 x 6 ten tonne trucks which can also carry substantial amounts of ammunition.
source: http://www.republic-news.org/archive/97-repub/97_kay.htm
CNN: Rockets in Hiafia hit behind the Terraces of the Shrine, a BAHÁ'Í FAITH religious site, also a place for tourists.
The 240-millimeter Fajr-3 missile has a range of some 25 miles, and the 333-millimeter Fajr-5 missile has a range of about 45 miles. Production of the Fajr-3 missile, with an estimated range of 45 km, was estimated to have started in 1991. Iran had for some time been manufacturing the Naze'at (Iran-130), similar to the Shahin series. Fajr-3 has the same caliber, range and warhead weight as three known North Korean systems. The Fagr-5 missile, which is launched from a mobile platform, reportedly has a range of between 60-70 kilometers. The missile was constructed by the Iranians, reportedly with help from North Korea and China.> Like the Katyusha rocket and the Scud missile, however, at the limit of its range it is accurate only within a radius of around one kilometer. There are unconfirmed though plausible reports that Iran has tested a chemical warhead for the Fajr-5.
In early 2001 it was reported that Hizbullah had set up a belt of mobile multi-barreled rocket launchers and truck-mounted missiles along Israel’s northern flank ready to go off the moment Israel launched a large-scale military offensive against Lebanon. The Japanese-made Isuzo truck launchers carry Fajr-3 (Arabic for dawn-3) projectiles, a third generation of Katyusha rockets with a 60-kilometer range manufactured by Iran's air force industry.