A back-to-back car bombing targeting an ethnic minority in northern Iraq and militant attacks on Iraqi soldiers and police killed at least 20 people on Friday, officials said.

Since last year, militants have escalated attacks in Iraq, with violence surging to levels not seen since 2006 and 2007.

The double bombing struck in the morning in Tahrawa, a village inhabited by families from the Shabak ethnic group, killing seven members of the minority. The village is near the city of Mosul, 360 kilometers (225 miles) northwest of Baghdad. Police officials also said that 43 people were wounded in the explosions. […]