HA LONG BAY, Vietnam » Police in Vietnam say the captain, crew and owner of a Ha Long Bay tour boat have been detained for questioning two days after 11 foreign vacationers and their Vietnamese guide drowned when the vessel sank as they were sleeping.

Quang Ninh police spokesman Le Thanh Binh says the director of Truong Hai Co., the boat captain and five crew members have been detained.

Vu Van Thin, chief administrator of Quang Ninh province, says the government will offer $1,000 to each of the foreign victims’ families and $500 to the nine survivors.

The tour boat company could not be reached Saturday, and it’s unclear if additional compensation will be provided from an insurance company.

The foreign victims — from nine countries — remain at hospitals in Ha Long Bay.