In any case, rebels in different parts of Cambodia appeared to have been in contact. Documents captured by the Cambodian government in May 1968, for example, suggested that insurgents in the country's southwest corner were in touch with rebel operatives in Phnom Penh. Likewise, the rebels in the capital were almost certainly in contact with those in the southeast. A defector who served on the main commo-liaison corridor between COSVN and Phnom Penh saw over a hundred ethnic Cambodians travelling to and fro over the route between March and September 1969.