Colombia, Peru and Ecuador want more international aid to help manage a surge in Venezuelan migration that is overwhelming public services in those countries, a Peruvian official said on Thursday.

S Colombia, Peru [and] Ecuador コロンビア、ペルーとエクアドル
V [want]
O (more international) aid 国際援助
C [to help]
[manage] a surge 殺到
どんな→[in] Venezuelan migration ベネズエラの移住

どんな→
[that] 移住
V [is overwhelming]
O public services 公的サービス
どんな→[in] those countries
,

S a Peruvian official 当局
V [said]