(Adds milestone, month-on-month growth rate, details of April growth and background on Peruvian economy)
LIMA, June 15 (Reuters) - Peru's economy grew 0.17 percent in April compared with the same month a year earlier, government statistics agency Inei said on Thursday, the lowest monthly expansion since July 2009 amid declines in the construction and manufacturing sectors.
That was well below median expectations in a Reuters poll for an interannual expansion of 0.9 percent. Compared with March, however, the economy expanded 0.47 percent as the key mining sector grew 1.9 percent and fishing boomed.
The Andean country has been one of the fastest growing economies in the region in recent years. But a corruption scandal linked to Brazilian construction company Odebrecht has paralyzed public works this year, and devastating floods in the northern region have also weighed on the economy.
Construction fell 8.0 percent year-on year, while the manufacturing and agricultural sectors also declined, according to Inei. Overall, the economy has grown 1.58 percent in the first four months of the year compared with the same period in 2016, and has expanded 3.12 percent in the past 12 months.
Peru's government expects the economy to grow 3 percent in 2017. (Reporting by Teresa Cespedes; Writing by Luc Cohen; Editing by Chizu Nomiyama and Jonathan Oatis)