Israeli troops searching for three teenagers it says were kidnapped a fortnight ago by Hamas militants, arrested 17 Palestinians in the West Bank overnight, an army spokeswoman said on Wednesday. The arrests took place across the West Bank and included a Palestinian MP, she said. The latest detentions raised to 371 the number of Palestinians arrested in the two weeks since the teens disappeared from a hitchhiking post in the southern West Bank. Of that number, 282 are allied to the Islamist Hamas movement, an army spokesman told AFP.