Ottawa-Gatineau’s unemployment rate increased slightly to 6.7 per cent in June, compared with 6.2 per cent in May. The local economy gained 300 jobs last month and the local labour force increased by 5,600. Nationally, a better start to the youth summer jobs market helped the economy record steady employment gains in June, Statistics Canada said Friday. Employers added 18,000 jobs last month, the agency said, mostly in part-time and private sector work.