Baghdad, Nov 19 (IANS) 

At least 11 people were killed and 18 wounded in a wave of violent attacks witnessed in different parts of Iraq Monday, police sources said.

Seven gunmen, including two suicide bombers, were killed in the country's Anbar province when border police guards backed by an Iraqi army force clashed with gunmen who crossed the border from Syria and tried to attack an outpost on the Iraqi- Syrian border, 330 km from Baghdad, reported Xinhua citing a police source. 

Also in Anbar, some gunmen blew up bombs in four bridges passing over a highway near the city of Rutba, some 370 km from Baghdad, and destroyed parts of the bridges without causing human casualties, a police source said. 

In Baghdad, a civilian was killed and two were wounded in a roadside bomb explosion, a local police source said.

In the Nineveh province, 14 policemen, including two officers, were wounded when three roadside bombs went off coordinately near the convoy of Brigadier General Khalid al-Hamdani, police chief of the province, a police source said. 

Hamdani survived the attack, though several vehicles of his convoy were damaged by the blasts, the source said.

Elsewhere, Arif Jabbar al-Dulaimi, mayor of Salahudin's provincial capital city of Tikrit and his driver were wounded when a roadside bomb struck their vehicle in Tikrit, some 170 km from Baghdad, a provincial police source said.

In Diyala province, a tribal leader and his son were killed when gunmen attacked his house at a village, some 60 km from Baquba city, about 65 km northeast of Baghdad, a provincial police source said. 

In a separate incident, gunmen shot dead a lawyer while he was driving in the city of Maqdadiyah, some 40 km northeast of Baquba.