Militants kill American teacher in Yemen

Gunmen linked to al Qaeda shot dead an American teacher in Yemen on Sunday for Christian "proselytising", and officials said government forces had killed a dozen militants in clashes and attacks on their strongholds.
The incidents underscore the challenges facing President Abd-Rabbu Mansour Hadi, who took office last month after a year of massive protests against his predecessor Ali Abdullah Saleh.
A police source in the city of Taiz said a gunman riding on a motorcycle driven by an accomplice shot the US English language teacher, who was also deputy director of a language school, the Swedish Institute.
Officials from the institute in Taiz, Yemen's commercial hub 200 km (120 miles) south of Sanaa, identified the victim as Joel Shrun and said he was born in 1983.
There was no immediate comment from the US embassy. The gunmen, who escaped after the attack, were believed to be linked to al Qaeda, the police source said. A group affiliated with the militant network claimed responsibility.
"This operation comes as a response to the campaign of Christian proselytising that the West has launched against Muslims," an unidentified person said in a text message to journalists, claiming responsibility on behalf of the al Qaeda-linked Ansar al-Sharia (Partisans of Islamic Law).
The message called Shrun "one of the biggest American proselytisers".
Islamic militants often accuse Western aid groups of covert religious missionary work.
The United States and Saudi Arabia, Yemen's neighbour and the world's biggest oil exporter, are concerned about al Qaeda's expansion in Yemen where it has regrouped after suffering reverses in Iraq and Saudi Arabia. Yemen has seen an escalation of al Qaeda violence since Hadi took office in February vowing to fight the Islamist network, which exploited months of protests against Saleh's 33 years in office to seize swathes of territory.
Daily clashes break out around the areas controlled by the militants in southern Yemen.
Ansar al-Sharia captured Jaar in Abyan Province in March last year after the outbreak of protests against Saleh and have turned it into their main base in southern Yemen.
A local official said on Sunday that up to 14 militants were killed in artillery attacks and clashes on Saturday north of the Abyan provincial capital of Zinjibar, the area of Bagdar and the town of Jaar.
Also on Sunday, a government warplane bombed Islamist militants in the southern city of Jaar, causing people to flee their homes, residents said. There were no immediate reports of casualties.
In early March, militants killed more than 110 soldiers in twin suicide attacks and a raid on their outposts in which the militant group also said it captured some 70 soldiers.
Under the power transfer deal, Hadi was elected for a two-year transitional period to restructure the armed forces and oversee the drafting of a new constitution.