While such measures were targeted at all bourgeois elements, such measures hurt Hoa the hardest and resulted in the expropriation of Hoa properties in and around major cities. Hoa communities offered widespread resistance and clashes left the streets of Cholon "full of corpses". These measures, combined with external tensions stemming from Vietnam's dispute with Cambodia and China in 1978 and 1979 caused an exodus of the majority of the Hoa, of whom more than 170,000 fled overland into the province of Guangxi, China, from the North and the remainder fled by boat from the South. China received a daily influx of 4–5,000 refugees, while Southeast Asian countries saw a wave of 5,000 boat people arriving at their shores each month. China sent unarmed ships to help evacuate the refugees, but encountered diplomatic problems as the Vietnamese government denied that the Hoa suffered persecution and later refused to issue exit permits after as many as 250,000 Hoa had applied for repatriation. In an attempt to stem the refugee flow, avert Vietnamese accusations that Beijing was coercing its citizens to emigrate and encourage Vietnam to change its policies towards ethnic Hoa, China closed off its land border in 1978. This led to a jump in the number of boat people, with as many as 100,000 arriving in other countries by the end of 1978. However, the Vietnamese government by now not only encouraged the exodus, but took the opportunity to profit from it by extorting a price of five to ten taels of gold or an equivalent of US$1,500 to $3,000 per person wishing to leave the country. The Vietnamese military also forcibly drove the thousands of border refugees across the China-Vietnam land border, causing numerous border incidents and armed clashes, while blaming these movements on China by accusing them of using saboteurs to force Vietnamese citizens into China. This new influx brought the number of refugees in China to around 200,000. One family was split. An ethnic Chinese man was deported while his ethnic Vietnamese wife and child were left behind. For those who lacked the resources to pay their way out remained to face continued discrimination and ostracism, including forced retirement, reduction of food rations and exclusion from certain fields of study, a measure considered necessary for national secutiry.