More unrest in southwestern Iran

This from the BBC:

A bomb exploded in the southern Iranian city of Ahwaz, hours after two men were hung for an attack last year, according to Iranian reports.
The percussion bomb shattered the windows of a building in the Kianpars area of the city on Thursday evening, but no casualties were reported.

The attack is the latest in a series to hit the restive Khuzestan Province, at the heart of Iran's oil industry.

Eight people died in bomb attacks on a government office and bank a month ago.
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On Thursday, two men found guilty of bomb attacks that killed six people in Ahwaz in October 2005 were publicly hanged at the place where the bombings occurred.

One of those executed said he had contacted Arab separatist groups based in Canada and Britain after reading their websites.

In November, protests erupted in Ahwaz after ethnic Arabs accused Iran's Persian majority of discrimination.

The Khuzestan Province is home to a sizeable Arab population. Just a few days ago, a couple of grenades exploded in the province.