April 4 (Reuters) - Oil prices fell further in early

Asian trade on Friday, and were on track for the worst week in

months over U.S. President Donald Trump's new tariffs, stoking

concerns over a global trade war that could weigh on oil demand.

Brent futures fell 31 cents, or 0.4%, to $69.83 a

barrel by 0157 GMT. U.S. West Texas Intermediate crude futures

were down 32 cents, or 0.5%, to $66.63.

Brent was on course for its biggest weekly loss in

percentage terms since the week ended October 14, and WTI since

the week ended January 21.

Adding to the bearish sentiment was a decision by the

Organisation of Petroleum Exporting Countries and their allies

(OPEC+) to advance their plan for oil output increases, with the

organisation now aiming to return 411,000 barrels per day to the

market in May, up from 135,000 bpd as initially planned.

"This brings forward the expected surplus that we see in the

oil market this year. More OPEC+ supply should translate to more

medium sour crude oil and a wider Brent-Dubai spread," analysts

at ING said on Friday. "This spread has seen an unusual discount

for much of the year."

Both benchmarks started plunging lower since Trump's news

conference on Wednesday afternoon, which he called "Liberation

Day" as he announced a 10% baseline tariff on all imports to the

United States and higher duties on dozens of the country's

biggest trading partners.

Imports of oil, gas and refined products were exempted from

Trump's sweeping new tariffs, but the policies could stoke

inflation, slow economic growth and intensify trade disputes,

weighing on oil prices.