Lingering tensions in Eastern Europe spurred inflows to select gold and nickel exchange traded products last week, according to ETF Securities.

In a research note out Monday, the firm said long gold ETPs hauled in$36 million last week as investors sought safe-haven plays in preparation of further deterioration of the crisis in Ukraine.

“While Ukraine’s presidential elections on May 25th might be considered a step in the right direction, the situation in the Ukraine remains tense and a worsening of the crisis seems likely. Against the Ukrainian and Western governments wishes, Russian separatists in the Ukraine pushed ahead with a referendum on self-rule on Sunday, with the small groups polled voting for separation,” said Nicholas Brooks and Simona Gambarini of ETF Securities in the note.

To this point in May, some of the largest gold ETFs have seen outflows. The SPDR Gold Shares (NYSEArca: GLD) and the iShares Gold Trust (NYSEArca: IAU) have lost a combined $224 million since the start of the month. [Ukraine Crisis Lifts Gold ETFs]

ETF Securities points out that its London-listed nickel ETP, the ETFS Physical Nickel, saw its biggest inflows in a month last week.

An export ban by Indonesia and Western sanctions against Russia have boosted nickel prices this year. The iPath Dow Jones-UBS Nickel Total Return Sub-Index ETN (NYSEArca: JJN) has surged nearly 50% while the iPath Pure Beta Nickel ETN (NYSEArca: NINI) was sitting on a 43.1% gain heading into Monday. [Sanctions Against Russia Lift Nickel ETNs]

Vale, the world’s second-largest nickel producer, was ordered to suspend production at one of its plants in New Caledonia last week, prompting a strong reaction in price and US$5.6mn of inflows into NICK. Nickel is the best performing industrial metal year-to-date, up 40%, following on from Indonesia’s export ban and shrinking Chinese stockpiles. Despite the already large gains, potential deterioration of the situation in the Ukraine could lead to further price rises, said ETF Securities.

iPath Dow Jones-UBS Nickel Total Return Sub-Index ETN

ETF Trends editorial team contributed to this post.